Q: What are the prime factors of the number 15,668,860?

 A: 2, 5, 47, 79, 211

Why are those the prime factors of the number 15,668,860?

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 15,668,860

15,668,860
Factor Arrows
27,834,430
Factor Arrows
23,917,215
Factor Arrows
5783,443
Factor Arrows
4716,669
Factor Arrows
79211

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, 5, 47, 79, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 47 x 79 x 211 = 15,668,860

This can also be written as 22 x 51 x 471 x 791 x 2111 = 15,668,860

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


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