Q: What are the prime factors of the number 77,787,576?

 A: 2, 3, 1080383

Why are those the prime factors of the number 77,787,576?

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 77,787,576

77,787,576
Factor Arrows
238,893,788
Factor Arrows
219,446,894
Factor Arrows
29,723,447
Factor Arrows
33,241,149
Factor Arrows
31,080,383

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, 1080383

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 1,080,383 = 77,787,576

This can also be written as 23 x 32 x 1,080,3831 = 77,787,576

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


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