Q: What are the prime factors of the number 624,636?

 A: 2, 3, 17351

Why are those the prime factors of the number 624,636?

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 624,636

624,636
Factor Arrows
2312,318
Factor Arrows
2156,159
Factor Arrows
352,053
Factor Arrows
317,351

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, 17351

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 17,351 = 624,636

This can also be written as 22 x 32 x 17,3511 = 624,636

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


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