Q: What are the prime factors of the number 199,497,386?

 A: 2, 11, 773, 11731

Why are those the prime factors of the number 199,497,386?

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 199,497,386

199,497,386
Factor Arrows
299,748,693
Factor Arrows
119,068,063
Factor Arrows
77311,731

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, 11, 773, 11731

We can check our work by multiplying all of the prime factors together: 2 x 11 x 773 x 11,731 = 199,497,386

This can also be written as 21 x 111 x 7731 x 11,7311 = 199,497,386

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


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