Q: What are the prime factors of the number 77,154,528?

 A: 2, 3, 11, 73063

Why are those the prime factors of the number 77,154,528?

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 77,154,528

77,154,528
Factor Arrows
238,577,264
Factor Arrows
219,288,632
Factor Arrows
29,644,316
Factor Arrows
24,822,158
Factor Arrows
22,411,079
Factor Arrows
3803,693
Factor Arrows
1173,063

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, 3, 11, 73063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 11 x 73,063 = 77,154,528

This can also be written as 25 x 31 x 111 x 73,0631 = 77,154,528

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


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