Q: What are the prime factors of the number 771,654,604?

 A: 2, 7, 31, 41, 21683

Why are those the prime factors of the number 771,654,604?

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 771,654,604

771,654,604
Factor Arrows
2385,827,302
Factor Arrows
2192,913,651
Factor Arrows
727,559,093
Factor Arrows
31889,003
Factor Arrows
4121,683

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, 7, 31, 41, 21683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 31 x 41 x 21,683 = 771,654,604

This can also be written as 22 x 71 x 311 x 411 x 21,6831 = 771,654,604

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


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