Q: What are the prime factors of the number 82,218,381?

 A: 3, 7, 79, 49559

Why are those the prime factors of the number 82,218,381?

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 82,218,381

82,218,381
Factor Arrows
327,406,127
Factor Arrows
73,915,161
Factor Arrows
7949,559

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:

3, 7, 79, 49559

We can check our work by multiplying all of the prime factors together: 3 x 7 x 79 x 49,559 = 82,218,381

This can also be written as 31 x 71 x 791 x 49,5591 = 82,218,381

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


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