Q: What are the prime factors of the number 28,674,624?

 A: 2, 3, 11, 13577

Why are those the prime factors of the number 28,674,624?

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 28,674,624

28,674,624
Factor Arrows
214,337,312
Factor Arrows
27,168,656
Factor Arrows
23,584,328
Factor Arrows
21,792,164
Factor Arrows
2896,082
Factor Arrows
2448,041
Factor Arrows
3149,347
Factor Arrows
1113,577

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, 11, 13577

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 3 x 11 x 13,577 = 28,674,624

This can also be written as 26 x 31 x 111 x 13,5771 = 28,674,624

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


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