Q: What are the prime factors of the number 100,231,232?

 A: 2, 19, 139, 593

Why are those the prime factors of the number 100,231,232?

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 100,231,232

100,231,232
Factor Arrows
250,115,616
Factor Arrows
225,057,808
Factor Arrows
212,528,904
Factor Arrows
26,264,452
Factor Arrows
23,132,226
Factor Arrows
21,566,113
Factor Arrows
1982,427
Factor Arrows
139593

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, 19, 139, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 19 x 139 x 593 = 100,231,232

This can also be written as 26 x 191 x 1391 x 5931 = 100,231,232

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


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