Q: What are the prime factors of the number 82,404,280?

 A: 2, 5, 7, 42043

Why are those the prime factors of the number 82,404,280?

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 82,404,280

82,404,280
Factor Arrows
241,202,140
Factor Arrows
220,601,070
Factor Arrows
210,300,535
Factor Arrows
52,060,107
Factor Arrows
7294,301
Factor Arrows
742,043

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, 5, 7, 42043

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 7 x 42,043 = 82,404,280

This can also be written as 23 x 51 x 72 x 42,0431 = 82,404,280

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


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