Q: What are the prime factors of the number 15,522,072?

 A: 2, 3, 31, 673

Why are those the prime factors of the number 15,522,072?

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 15,522,072

15,522,072
Factor Arrows
27,761,036
Factor Arrows
23,880,518
Factor Arrows
21,940,259
Factor Arrows
3646,753
Factor Arrows
3120,863
Factor Arrows
31673

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, 31, 673

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 31 x 673 = 15,522,072

This can also be written as 23 x 31 x 312 x 6731 = 15,522,072

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


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