Q: What are the prime factors of the number 215,327,756?

 A: 2, 7, 109, 10079

Why are those the prime factors of the number 215,327,756?

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 215,327,756

215,327,756
Factor Arrows
2107,663,878
Factor Arrows
253,831,939
Factor Arrows
77,690,277
Factor Arrows
71,098,611
Factor Arrows
10910,079

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, 109, 10079

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 109 x 10,079 = 215,327,756

This can also be written as 22 x 72 x 1091 x 10,0791 = 215,327,756

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


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