Prime Factorization by the Ladder Method:
405 is divisible by 3, 405/3 = 135
135 is divisible by 3, 135/3 = 45
45 is divisible by 3, 45/3 = 15
15 is divisible by 3, 15/3 = 5
5 is a prime number
Prime Factorization of 405: 405 = 3 x 3 x 3 x 3 x 5
Prime Factorization of 405 in Exponential Form: 405 = 34 x 5
Prime Factorization of 405
The solution above and other related solutions were provided by the Prime Factorization Application.
