Q: What are the prime factors of the number 771,664?

 A: 2, 17, 2837

Why are those the prime factors of the number 771,664?

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 771,664

771,664
Factor Arrows
2385,832
Factor Arrows
2192,916
Factor Arrows
296,458
Factor Arrows
248,229
Factor Arrows
172,837

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, 17, 2837

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 2,837 = 771,664

This can also be written as 24 x 171 x 2,8371 = 771,664

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


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