Q: What are the prime factors of the number 67,208,089?

 A: 13, 17, 149, 157

Why are those the prime factors of the number 67,208,089?

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 67,208,089

67,208,089
Factor Arrows
135,169,853
Factor Arrows
13397,681
Factor Arrows
1723,393
Factor Arrows
149157

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:

13, 17, 149, 157

We can check our work by multiplying all of the prime factors together: 13 x 13 x 17 x 149 x 157 = 67,208,089

This can also be written as 132 x 171 x 1491 x 1571 = 67,208,089

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


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