Q: What are the prime factors of the number 67,787,731?

 A: 11, 31, 269, 739

Why are those the prime factors of the number 67,787,731?

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 67,787,731

67,787,731
Factor Arrows
116,162,521
Factor Arrows
31198,791
Factor Arrows
269739

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:

11, 31, 269, 739

We can check our work by multiplying all of the prime factors together: 11 x 31 x 269 x 739 = 67,787,731

This can also be written as 111 x 311 x 2691 x 7391 = 67,787,731

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


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