Q: What are the prime factors of the number 771,077,132?

 A: 2, 7, 89, 44203

Why are those the prime factors of the number 771,077,132?

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 771,077,132

771,077,132
Factor Arrows
2385,538,566
Factor Arrows
2192,769,283
Factor Arrows
727,538,469
Factor Arrows
73,934,067
Factor Arrows
8944,203

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, 89, 44203

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 89 x 44,203 = 771,077,132

This can also be written as 22 x 72 x 891 x 44,2031 = 771,077,132

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


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