Q: What are the prime factors of the number 707,265?

 A: 3, 5, 13, 31

Why are those the prime factors of the number 707,265?

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 707,265

707,265
Factor Arrows
3235,755
Factor Arrows
378,585
Factor Arrows
326,195
Factor Arrows
55,239
Factor Arrows
13403
Factor Arrows
1331

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, 13, 31

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 13 x 13 x 31 = 707,265

This can also be written as 33 x 51 x 132 x 311 = 707,265

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


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