Q: What are the prime factors of the number 77,374,479?

 A: 3, 7, 13, 19, 2131

Why are those the prime factors of the number 77,374,479?

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 77,374,479

77,374,479
Factor Arrows
325,791,493
Factor Arrows
73,684,499
Factor Arrows
7526,357
Factor Arrows
1340,489
Factor Arrows
192,131

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:

3, 7, 13, 19, 2131

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 13 x 19 x 2,131 = 77,374,479

This can also be written as 31 x 72 x 131 x 191 x 2,1311 = 77,374,479

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 77,374,479:


Ask a Question