Q: What are the prime factors of the number 357,356,412?

 A: 2, 3, 7, 173, 1171

Why are those the prime factors of the number 357,356,412?

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 357,356,412

357,356,412
Factor Arrows
2178,678,206
Factor Arrows
289,339,103
Factor Arrows
329,779,701
Factor Arrows
39,926,567
Factor Arrows
71,418,081
Factor Arrows
7202,583
Factor Arrows
1731,171

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, 7, 173, 1171

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 7 x 173 x 1,171 = 357,356,412

This can also be written as 22 x 32 x 72 x 1731 x 1,1711 = 357,356,412

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


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