Q: What are the prime factors of the number 77,343,776?

 A: 2, 197, 12269

Why are those the prime factors of the number 77,343,776?

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 77,343,776

77,343,776
Factor Arrows
238,671,888
Factor Arrows
219,335,944
Factor Arrows
29,667,972
Factor Arrows
24,833,986
Factor Arrows
22,416,993
Factor Arrows
19712,269

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, 197, 12269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 197 x 12,269 = 77,343,776

This can also be written as 25 x 1971 x 12,2691 = 77,343,776

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


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