Q: What are the prime factors of the number 68,440,664?

 A: 2, 109, 78487

Why are those the prime factors of the number 68,440,664?

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 68,440,664

68,440,664
Factor Arrows
234,220,332
Factor Arrows
217,110,166
Factor Arrows
28,555,083
Factor Arrows
10978,487

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, 109, 78487

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 109 x 78,487 = 68,440,664

This can also be written as 23 x 1091 x 78,4871 = 68,440,664

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


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