Q: What are the prime factors of the number 9,642,624?

 A: 2, 3, 25111

Why are those the prime factors of the number 9,642,624?

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 9,642,624

9,642,624
Factor Arrows
24,821,312
Factor Arrows
22,410,656
Factor Arrows
21,205,328
Factor Arrows
2602,664
Factor Arrows
2301,332
Factor Arrows
2150,666
Factor Arrows
275,333
Factor Arrows
325,111

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, 25111

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 25,111 = 9,642,624

This can also be written as 27 x 31 x 25,1111 = 9,642,624

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


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