Q: What are the prime factors of the number 702,765?

 A: 3, 5, 7, 23, 97

Why are those the prime factors of the number 702,765?

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 702,765

702,765
Factor Arrows
3234,255
Factor Arrows
378,085
Factor Arrows
515,617
Factor Arrows
72,231
Factor Arrows
2397

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, 23, 97

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 23 x 97 = 702,765

This can also be written as 32 x 51 x 71 x 231 x 971 = 702,765

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


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