Q: What are the prime factors of the number 67,121,551?

 A: 7, 41, 271, 863

Why are those the prime factors of the number 67,121,551?

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 67,121,551

67,121,551
Factor Arrows
79,588,793
Factor Arrows
41233,873
Factor Arrows
271863

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, 41, 271, 863

We can check our work by multiplying all of the prime factors together: 7 x 41 x 271 x 863 = 67,121,551

This can also be written as 71 x 411 x 2711 x 8631 = 67,121,551

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


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