Prime factorization of 9945

Prime factorization of 9945:

By prime factorization of 9945 we follow 5 simple steps:
1. We write number 9945 above a 2-column table
2. We divide 9945 by the smallest possible prime factor
3. We write down on the left side of the table the prime factor and next number to factorize on the ride side
4. We continue to factor in this fashion (we deal with odd numbers by trying small prime factors)
5. We continue until we reach 1 on the ride side of the table

9945
prime factors	number to factorize
3	3315
3	1105
5	221
13	17
17	1

Prime factorization of 9945 = 1×3×3×5×13×17= $ 1 × 3^2 × 5 × 13 × 17 $