Q: What are the prime factors of the number 161,727,587?

 A: 7, 471509

Why are those the prime factors of the number 161,727,587?

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 161,727,587

161,727,587
Factor Arrows
723,103,941
Factor Arrows
73,300,563
Factor Arrows
7471,509

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:

7, 471509

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 471,509 = 161,727,587

This can also be written as 73 x 471,5091 = 161,727,587

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


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