Q: What are the prime factors of the number 31,000,752?

 A: 2, 3, 71761

Why are those the prime factors of the number 31,000,752?

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 31,000,752

31,000,752
Factor Arrows
215,500,376
Factor Arrows
27,750,188
Factor Arrows
23,875,094
Factor Arrows
21,937,547
Factor Arrows
3645,849
Factor Arrows
3215,283
Factor Arrows
371,761

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, 71761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 71,761 = 31,000,752

This can also be written as 24 x 33 x 71,7611 = 31,000,752

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


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