Q: What are the prime factors of the number 656,688?

 A: 2, 3, 13681

Why are those the prime factors of the number 656,688?

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 656,688

656,688
Factor Arrows
2328,344
Factor Arrows
2164,172
Factor Arrows
282,086
Factor Arrows
241,043
Factor Arrows
313,681

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, 13681

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13,681 = 656,688

This can also be written as 24 x 31 x 13,6811 = 656,688

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


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