Q: What are the prime factors of the number 77,500,784?

 A: 2, 1361, 3559

Why are those the prime factors of the number 77,500,784?

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 77,500,784

77,500,784
Factor Arrows
238,750,392
Factor Arrows
219,375,196
Factor Arrows
29,687,598
Factor Arrows
24,843,799
Factor Arrows
1,3613,559

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, 1361, 3559

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 1,361 x 3,559 = 77,500,784

This can also be written as 24 x 1,3611 x 3,5591 = 77,500,784

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


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