Q: What are the prime factors of the number 346,642,156?

 A: 2, 7, 19, 349, 1867

Why are those the prime factors of the number 346,642,156?

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 346,642,156

346,642,156
Factor Arrows
2173,321,078
Factor Arrows
286,660,539
Factor Arrows
712,380,077
Factor Arrows
19651,583
Factor Arrows
3491,867

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, 19, 349, 1867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 19 x 349 x 1,867 = 346,642,156

This can also be written as 22 x 71 x 191 x 3491 x 1,8671 = 346,642,156

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


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