Q: What are the prime factors of the number 440,137,752?

 A: 2, 3, 17, 23, 31, 89

Why are those the prime factors of the number 440,137,752?

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 440,137,752

440,137,752
Factor Arrows
2220,068,876
Factor Arrows
2110,034,438
Factor Arrows
255,017,219
Factor Arrows
318,339,073
Factor Arrows
171,078,769
Factor Arrows
1763,457
Factor Arrows
232,759
Factor Arrows
3189

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, 17, 23, 31, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 17 x 23 x 31 x 89 = 440,137,752

This can also be written as 23 x 31 x 172 x 231 x 311 x 891 = 440,137,752

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


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