Q: What are the prime factors of the number 161,074,445?

 A: 5, 7, 41, 112247

Why are those the prime factors of the number 161,074,445?

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 161,074,445

161,074,445
Factor Arrows
532,214,889
Factor Arrows
74,602,127
Factor Arrows
41112,247

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:

5, 7, 41, 112247

We can check our work by multiplying all of the prime factors together: 5 x 7 x 41 x 112,247 = 161,074,445

This can also be written as 51 x 71 x 411 x 112,2471 = 161,074,445

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


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