Q: What are the prime factors of the number 77,581,287?

 A: 3, 7, 601, 683

Why are those the prime factors of the number 77,581,287?

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 77,581,287

77,581,287
Factor Arrows
325,860,429
Factor Arrows
38,620,143
Factor Arrows
32,873,381
Factor Arrows
7410,483
Factor Arrows
601683

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:

3, 7, 601, 683

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 601 x 683 = 77,581,287

This can also be written as 33 x 71 x 6011 x 6831 = 77,581,287

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


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