Prime Factorization by the Ladder Method:
420 is divisible by 2, 420/2 = 210
210 is divisible by 2, 210/2 = 105
105 is divisible by 3, 105/3 = 35
35 is divisible by 5, 35/5 = 7
7 is a prime number
Prime Factorization of 420: 420 = 2 x 2 x 3 x 5 x 7
Prime Factorization of 420 in Exponential Form: 420 = 22 x 3 x 5 x 7
Prime Factorization of 420
The solution above and other related solutions were provided by the Prime Factorization Application.