Q: What are the prime factors of the number 161,597,260?

 A: 2, 5, 11, 691, 1063

Why are those the prime factors of the number 161,597,260?

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 161,597,260

161,597,260
Factor Arrows
280,798,630
Factor Arrows
240,399,315
Factor Arrows
58,079,863
Factor Arrows
11734,533
Factor Arrows
6911,063

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, 5, 11, 691, 1063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 691 x 1,063 = 161,597,260

This can also be written as 22 x 51 x 111 x 6911 x 1,0631 = 161,597,260

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


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