Q: What are the prime factors of the number 162,435,532?

 A: 2, 7, 103, 151, 373

Why are those the prime factors of the number 162,435,532?

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 162,435,532

162,435,532
Factor Arrows
281,217,766
Factor Arrows
240,608,883
Factor Arrows
75,801,269
Factor Arrows
10356,323
Factor Arrows
151373

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, 7, 103, 151, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 103 x 151 x 373 = 162,435,532

This can also be written as 22 x 71 x 1031 x 1511 x 3731 = 162,435,532

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


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