Q: What are the prime factors of the number 688,712?

 A: 2, 19, 23, 197

Why are those the prime factors of the number 688,712?

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 688,712

688,712
Factor Arrows
2344,356
Factor Arrows
2172,178
Factor Arrows
286,089
Factor Arrows
194,531
Factor Arrows
23197

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, 19, 23, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 19 x 23 x 197 = 688,712

This can also be written as 23 x 191 x 231 x 1971 = 688,712

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


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