Q: What are the prime factors of the number 100,222,213?

 A: 7, 13, 137, 8039

Why are those the prime factors of the number 100,222,213?

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 100,222,213

100,222,213
Factor Arrows
714,317,459
Factor Arrows
131,101,343
Factor Arrows
1378,039

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:

7, 13, 137, 8039

We can check our work by multiplying all of the prime factors together: 7 x 13 x 137 x 8,039 = 100,222,213

This can also be written as 71 x 131 x 1371 x 8,0391 = 100,222,213

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


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