Q: What are the prime factors of the number 82,373,984?

 A: 2, 7, 11, 101, 331

Why are those the prime factors of the number 82,373,984?

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 82,373,984

82,373,984
Factor Arrows
241,186,992
Factor Arrows
220,593,496
Factor Arrows
210,296,748
Factor Arrows
25,148,374
Factor Arrows
22,574,187
Factor Arrows
7367,741
Factor Arrows
1133,431
Factor Arrows
101331

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, 7, 11, 101, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 11 x 101 x 331 = 82,373,984

This can also be written as 25 x 71 x 111 x 1011 x 3311 = 82,373,984

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


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