Q: What are the prime factors of the number 100,030,098?

 A: 2, 3, 7, 19, 103, 1217

Why are those the prime factors of the number 100,030,098?

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 100,030,098

100,030,098
Factor Arrows
250,015,049
Factor Arrows
316,671,683
Factor Arrows
72,381,669
Factor Arrows
19125,351
Factor Arrows
1031,217

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, 3, 7, 19, 103, 1217

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 19 x 103 x 1,217 = 100,030,098

This can also be written as 21 x 31 x 71 x 191 x 1031 x 1,2171 = 100,030,098

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


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