using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;

class Myon
{
    public Myon() { }
    public static int Main()
    {
        cin = new Scanner();
        new Myon().calc();
        return 0;
    }

    static Scanner cin;

    // メンバ変数---
    long A;
    long B;
    // -------------

    void calc()
    {
        A = cin.nextLong();
        B = cin.nextLong();

        HashSet<long> divisora = new HashSet<long>();
        HashSet<long> divisorb = new HashSet<long>();
        HashSet<long> divisor = new HashSet<long>();
        for (int i = 1; i <= Math.Sqrt(A); i++)
        {
            if(A % i == 0)
            {
                divisora.Add(i);
                divisora.Add(A / i);
            }
        }

        for (int i = 1; i <= Math.Sqrt(B); i++)
        {
            if(B % i == 0)
            {
                divisorb.Add(i);
                divisorb.Add(B / i);
            }
        }

        foreach(var a in divisora)
        {
            if (divisorb.Contains(a))
            {
                divisor.Add(a);
            }
        }


        divisor.Remove(1);

        long ret = 1;
        foreach (long i in divisor)
        {
            if(i == 2)
            {
                ret++;
                continue;
            }
            if(i % 2 == 0)
            {
                continue;
            }
            bool judge = false;
            for(int j = 3;j <= Math.Sqrt(i); j++)
            {
                if(i % j == 0)
                {
                    judge = true;
                    break;
                }
            }
            if (!judge)
            {
                ret++;
            }
        }

        Write(ret);

    }

    void Write(string v)
    {
        Console.WriteLine(v);
    }

    void Write(int v)
    {
        Console.WriteLine(v);
    }

    void Write(double v)
    {
        Console.WriteLine(v);
    }
    void Write(long v)
    {
        Console.WriteLine(v);
    }

    int Pow(int x, int y)
    {
        return (int)Math.Pow(double.Parse(x.ToString()), double.Parse(y.ToString()));
    }

    double Pow(double x, double y)
    {
        return Math.Pow(x, y);
    }

    class Scanner
    {
        string[] s;
        int i;

        char[] cs = new char[] { ' ' };

        public Scanner()
        {
            s = new string[0];
            i = 0;
        }

        public string next()
        {
            if (i < s.Length) return s[i++];
            string st = Console.ReadLine();
            while (st == "") st = Console.ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            if (s.Length == 0) return next();
            i = 0;
            return s[i++];
        }

        public int nextInt()
        {
            return int.Parse(next());
        }
        public int[] ArrayInt(int N, int add = 0)
        {
            int[] Array = new int[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextInt() + add;
            }
            return Array;
        }

        public long nextLong()
        {
            return long.Parse(next());
        }

        public long[] ArrayLong(int N, long add = 0)
        {
            long[] Array = new long[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextLong() + add;
            }
            return Array;
        }

        public double nextDouble()
        {
            return double.Parse(next());
        }


        public double[] ArrayDouble(int N, double add = 0)
        {
            double[] Array = new double[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextDouble() + add;
            }
            return Array;
        }
    }
}

Measured memory_bytes: 13396