Q: What are the prime factors of the number 119,155,992?

 A: 2, 3, 17, 19, 809

Why are those the prime factors of the number 119,155,992?

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 119,155,992

119,155,992
Factor Arrows
259,577,996
Factor Arrows
229,788,998
Factor Arrows
214,894,499
Factor Arrows
34,964,833
Factor Arrows
17292,049
Factor Arrows
1915,371
Factor Arrows
19809

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, 17, 19, 809

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 19 x 19 x 809 = 119,155,992

This can also be written as 23 x 31 x 171 x 192 x 8091 = 119,155,992

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


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