Q: What are the prime factors of the number 688,707,360?

 A: 2, 3, 5, 11, 4831

Why are those the prime factors of the number 688,707,360?

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 688,707,360

688,707,360
Factor Arrows
2344,353,680
Factor Arrows
2172,176,840
Factor Arrows
286,088,420
Factor Arrows
243,044,210
Factor Arrows
221,522,105
Factor Arrows
37,174,035
Factor Arrows
32,391,345
Factor Arrows
3797,115
Factor Arrows
3265,705
Factor Arrows
553,141
Factor Arrows
114,831

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, 11, 4831

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 11 x 4,831 = 688,707,360

This can also be written as 25 x 34 x 51 x 111 x 4,8311 = 688,707,360

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


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