Q: What are the prime factors of the number 198,501,632?

 A: 2, 7, 110771

Why are those the prime factors of the number 198,501,632?

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 198,501,632

198,501,632
Factor Arrows
299,250,816
Factor Arrows
249,625,408
Factor Arrows
224,812,704
Factor Arrows
212,406,352
Factor Arrows
26,203,176
Factor Arrows
23,101,588
Factor Arrows
21,550,794
Factor Arrows
2775,397
Factor Arrows
7110,771

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, 110771

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 7 x 110,771 = 198,501,632

This can also be written as 28 x 71 x 110,7711 = 198,501,632

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


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