Q: What are the prime factors of the number 352,043,328?

 A: 2, 3, 7, 13, 20149

Why are those the prime factors of the number 352,043,328?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 352,043,328

352,043,328
Factor Arrows
2176,021,664
Factor Arrows
288,010,832
Factor Arrows
244,005,416
Factor Arrows
222,002,708
Factor Arrows
211,001,354
Factor Arrows
25,500,677
Factor Arrows
31,833,559
Factor Arrows
7261,937
Factor Arrows
1320,149

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 13, 20149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 13 x 20,149 = 352,043,328

This can also be written as 26 x 31 x 71 x 131 x 20,1491 = 352,043,328

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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