Q: What are the prime factors of the number 15,527,472?

 A: 2, 3, 43, 7523

Why are those the prime factors of the number 15,527,472?

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 15,527,472

15,527,472
Factor Arrows
27,763,736
Factor Arrows
23,881,868
Factor Arrows
21,940,934
Factor Arrows
2970,467
Factor Arrows
3323,489
Factor Arrows
437,523

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, 43, 7523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 43 x 7,523 = 15,527,472

This can also be written as 24 x 31 x 431 x 7,5231 = 15,527,472

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


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