Q: What are the prime factors of the number 22,464,624?

 A: 2, 3, 7, 13, 37, 139

Why are those the prime factors of the number 22,464,624?

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 22,464,624

22,464,624
Factor Arrows
211,232,312
Factor Arrows
25,616,156
Factor Arrows
22,808,078
Factor Arrows
21,404,039
Factor Arrows
3468,013
Factor Arrows
766,859
Factor Arrows
135,143
Factor Arrows
37139

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, 13, 37, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 13 x 37 x 139 = 22,464,624

This can also be written as 24 x 31 x 71 x 131 x 371 x 1391 = 22,464,624

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


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