Q: What are the prime factors of the number 31,210,552?

 A: 2, 31, 317, 397

Why are those the prime factors of the number 31,210,552?

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 31,210,552

31,210,552
Factor Arrows
215,605,276
Factor Arrows
27,802,638
Factor Arrows
23,901,319
Factor Arrows
31125,849
Factor Arrows
317397

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, 31, 317, 397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 31 x 317 x 397 = 31,210,552

This can also be written as 23 x 311 x 3171 x 3971 = 31,210,552

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


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