Q: What are the prime factors of the number 15,620,868?

 A: 2, 3, 43, 10091

Why are those the prime factors of the number 15,620,868?

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 15,620,868

15,620,868
Factor Arrows
27,810,434
Factor Arrows
23,905,217
Factor Arrows
31,301,739
Factor Arrows
3433,913
Factor Arrows
4310,091

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, 10091

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 43 x 10,091 = 15,620,868

This can also be written as 22 x 32 x 431 x 10,0911 = 15,620,868

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


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