Q: What are the prime factors of the number 15,436,416?

 A: 2, 3, 61, 659

Why are those the prime factors of the number 15,436,416?

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 15,436,416

15,436,416
Factor Arrows
27,718,208
Factor Arrows
23,859,104
Factor Arrows
21,929,552
Factor Arrows
2964,776
Factor Arrows
2482,388
Factor Arrows
2241,194
Factor Arrows
2120,597
Factor Arrows
340,199
Factor Arrows
61659

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, 61, 659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 61 x 659 = 15,436,416

This can also be written as 27 x 31 x 611 x 6591 = 15,436,416

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


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