Q: What are the prime factors of the number 696,870?

 A: 2, 3, 5, 29, 89

Why are those the prime factors of the number 696,870?

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 696,870

696,870
Factor Arrows
2348,435
Factor Arrows
3116,145
Factor Arrows
338,715
Factor Arrows
312,905
Factor Arrows
52,581
Factor Arrows
2989

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, 5, 29, 89

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 29 x 89 = 696,870

This can also be written as 21 x 33 x 51 x 291 x 891 = 696,870

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


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