Q: What are the prime factors of the number 162,345,425?

 A: 5, 11, 43, 13729

Why are those the prime factors of the number 162,345,425?

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 162,345,425

162,345,425
Factor Arrows
532,469,085
Factor Arrows
56,493,817
Factor Arrows
11590,347
Factor Arrows
4313,729

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, 11, 43, 13729

We can check our work by multiplying all of the prime factors together: 5 x 5 x 11 x 43 x 13,729 = 162,345,425

This can also be written as 52 x 111 x 431 x 13,7291 = 162,345,425

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


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