Q: What are the prime factors of the number 100,442,144?

 A: 2, 11, 433, 659

Why are those the prime factors of the number 100,442,144?

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 100,442,144

100,442,144
Factor Arrows
250,221,072
Factor Arrows
225,110,536
Factor Arrows
212,555,268
Factor Arrows
26,277,634
Factor Arrows
23,138,817
Factor Arrows
11285,347
Factor Arrows
433659

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, 11, 433, 659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 433 x 659 = 100,442,144

This can also be written as 25 x 111 x 4331 x 6591 = 100,442,144

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


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