Q: What are the prime factors of the number 100,222,208?

 A: 2, 17, 23029

Why are those the prime factors of the number 100,222,208?

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 100,222,208

100,222,208
Factor Arrows
250,111,104
Factor Arrows
225,055,552
Factor Arrows
212,527,776
Factor Arrows
26,263,888
Factor Arrows
23,131,944
Factor Arrows
21,565,972
Factor Arrows
2782,986
Factor Arrows
2391,493
Factor Arrows
1723,029

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, 17, 23029

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 17 x 23,029 = 100,222,208

This can also be written as 28 x 171 x 23,0291 = 100,222,208

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


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