Q: What are the prime factors of the number 190,891,316?

 A: 2, 7, 11, 271, 2287

Why are those the prime factors of the number 190,891,316?

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 190,891,316

190,891,316
Factor Arrows
295,445,658
Factor Arrows
247,722,829
Factor Arrows
76,817,547
Factor Arrows
11619,777
Factor Arrows
2712,287

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, 11, 271, 2287

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 11 x 271 x 2,287 = 190,891,316

This can also be written as 22 x 71 x 111 x 2711 x 2,2871 = 190,891,316

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


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