Q: What are the prime factors of the number 100,042,496?

 A: 2, 390791

Why are those the prime factors of the number 100,042,496?

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 100,042,496

100,042,496
Factor Arrows
250,021,248
Factor Arrows
225,010,624
Factor Arrows
212,505,312
Factor Arrows
26,252,656
Factor Arrows
23,126,328
Factor Arrows
21,563,164
Factor Arrows
2781,582
Factor Arrows
2390,791

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, 390791

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 2 x 2 x 390,791 = 100,042,496

This can also be written as 28 x 390,7911 = 100,042,496

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


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