Original: The dozen is convenient because its multiples and divisors are convenient : 12 = 2 Ã -- 2 Ã -- 3 , 3 Ã -- 4 = 2 Ã -- 6 , 60 = 12 Ã -- 5 , 360 = 12 Ã -- 30 .
Simplified: The dozen is convenient because its multipliers and multiples are convenient : 12 = 3 2 2 , and 360 = 30 12 .