Q: What are the prime factors of the number 79,152,780?

 A: 2, 3, 5, 7, 188459

Why are those the prime factors of the number 79,152,780?

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 79,152,780

79,152,780
Factor Arrows
239,576,390
Factor Arrows
219,788,195
Factor Arrows
36,596,065
Factor Arrows
51,319,213
Factor Arrows
7188,459

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, 5, 7, 188459

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 188,459 = 79,152,780

This can also be written as 22 x 31 x 51 x 71 x 188,4591 = 79,152,780

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


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