Q: What are the prime factors of the number 15,012,774?

 A: 2, 3, 7, 19, 6271

Why are those the prime factors of the number 15,012,774?

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 15,012,774

15,012,774
Factor Arrows
27,506,387
Factor Arrows
32,502,129
Factor Arrows
3834,043
Factor Arrows
7119,149
Factor Arrows
196,271

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, 7, 19, 6271

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 19 x 6,271 = 15,012,774

This can also be written as 21 x 32 x 71 x 191 x 6,2711 = 15,012,774

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


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