Q: What are the prime factors of the number 626,535?

 A: 3, 5, 7, 13, 17

Why are those the prime factors of the number 626,535?

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 626,535

626,535
Factor Arrows
3208,845
Factor Arrows
369,615
Factor Arrows
323,205
Factor Arrows
37,735
Factor Arrows
51,547
Factor Arrows
7221
Factor Arrows
1317

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:

3, 5, 7, 13, 17

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 7 x 13 x 17 = 626,535

This can also be written as 34 x 51 x 71 x 131 x 171 = 626,535

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


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