Q: What are the prime factors of the number 178,184,825?

 A: 5, 7, 13, 67, 167

Why are those the prime factors of the number 178,184,825?

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 178,184,825

178,184,825
Factor Arrows
535,636,965
Factor Arrows
57,127,393
Factor Arrows
71,018,199
Factor Arrows
7145,457
Factor Arrows
1311,189
Factor Arrows
67167

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:

5, 7, 13, 67, 167

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 7 x 13 x 67 x 167 = 178,184,825

This can also be written as 52 x 72 x 131 x 671 x 1671 = 178,184,825

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


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