Q: What are the prime factors of the number 77,014,672?

 A: 2, 7, 23, 4271

Why are those the prime factors of the number 77,014,672?

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 77,014,672

77,014,672
Factor Arrows
238,507,336
Factor Arrows
219,253,668
Factor Arrows
29,626,834
Factor Arrows
24,813,417
Factor Arrows
7687,631
Factor Arrows
798,233
Factor Arrows
234,271

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, 23, 4271

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 23 x 4,271 = 77,014,672

This can also be written as 24 x 72 x 231 x 4,2711 = 77,014,672

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


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