Q: What are the prime factors of the number 215,327,750?

 A: 2, 5, 11, 78301

Why are those the prime factors of the number 215,327,750?

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 215,327,750

215,327,750
Factor Arrows
2107,663,875
Factor Arrows
521,532,775
Factor Arrows
54,306,555
Factor Arrows
5861,311
Factor Arrows
1178,301

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, 11, 78301

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 11 x 78,301 = 215,327,750

This can also be written as 21 x 53 x 111 x 78,3011 = 215,327,750

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


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