Prime Factorization by the Ladder Method:
1,989 is divisible by 3, 1,989/3 = 663
663 is divisible by 3, 663/3 = 221
221 is divisible by 13, 221/13 = 17
17 is a prime number
Prime Factorization of 1,989: 1,989 = 3 x 3 x 13 x 17
Prime Factorization of 1,989 in Exponential Form: 1,989 = 32 x 13 x 17
Prime Factorization of 1,989
The solution above and other related solutions were provided by the Prime Factorization Application.