Buggy python submission (verdict: Runtime Error):
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 

if N >= 3:
    L = []
    R = []

    gl = As[0]
    gr = As[N-1]
    L.append(gl)
    R.append(gr)

    for i in range(1, N-1):
        gl = gcd(gl, As[i]) 
        L.append(gl)

    for i in range(1, N-1):
        gr = gcd(gr, As[N-i-1])
        R.append(gr)

    for i in range(N):
        if i == 0:
            max_g = R[N-2]
        else:
            if i == N-1:
                cur_g = L[N-2]
            else:
                cur_g = math.gcd(L[i-1], R[N-2-i])
            max_g = max(max_g, cur_g)

    out = max_g
else:
    out = max(As)

print(out)

Fixed submission:
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
As = [int(elm) for elm in input().split(" ")] 

if N >= 3:
    L = []
    R = []

    gl = As[0]
    gr = As[N-1]
    L.append(gl)
    R.append(gr)

    for i in range(1, N-1):
        gl = math.gcd(gl, As[i]) 
        L.append(gl)

    for i in range(1, N-1):
        gr = math.gcd(gr, As[N-i-1])
        R.append(gr)

    for i in range(N):
        if i == 0:
            max_g = R[N-2]
        else:
            if i == N-1:
                cur_g = L[N-2]
            else:
                cur_g = math.gcd(L[i-1], R[N-2-i])
            max_g = max(max_g, cur_g)

    out = max_g
else:
    out = max(As)

print(out)

Fixed submission:
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = math.gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = math.gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Fixed submission:
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Buggy python submission (verdict: Runtime Error):
import math
from functools import reduce
import numpy as np

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = math.gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = math.gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Fixed submission:
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Buggy python submission (verdict: Runtime Error):
import math
from functools import reduce
import numpy as np

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(N//2):
        g = math.gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        new_gs = []
        N1 = len(gs)
        for i in range(N1//2):
            g = math.gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)

Fixed submission:
#import math
from fractions import gcd

N = int(input())
As = [int(elm) for elm in input().split(" ")] 


def divisor(n):
    ass = []
    for i in range(1,int(n**0.5)+1):
        if n%i == 0:
            ass.append(i)
            ass.append(n//i)
    return ass

if N >= 3:
    gs = []
    for i in range(0, (N//2)*2 , 2):
        g = gcd(As[i], As[i+1])
        gs.append(g)
    if N % 2 == 1:
        gs.append(As[N-1])

    while len(gs) != 2:
        #print(gs)
        new_gs = []
        N1 = len(gs)
        #print("len",len(gs), (N1//2)*2)
        for i in range(0, (N1//2)*2, 2):
            g = gcd(gs[i], gs[i+1])
            new_gs.append(g)
        if N1 % 2 == 1:
            new_gs.append(gs[-1])
        gs = new_gs

    g1, g2 = gs
    d1 = divisor(g1) 
    d2 = divisor(g2) 
    ds = sorted(d1 + d2, reverse=True)

    #print(gs)
    #print(ds)
    for d in ds:
        count = sum([int(A % d == 0) for A in As])
        if count >= N-1:
            out = d
            break

else:
    out = max(As)

print(out)