Q: What are the prime factors of the number 215,342,670?

 A: 2, 3, 5, 83, 197, 439

Why are those the prime factors of the number 215,342,670?

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 215,342,670

215,342,670
Factor Arrows
2107,671,335
Factor Arrows
335,890,445
Factor Arrows
57,178,089
Factor Arrows
8386,483
Factor Arrows
197439

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, 3, 5, 83, 197, 439

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 83 x 197 x 439 = 215,342,670

This can also be written as 21 x 31 x 51 x 831 x 1971 x 4391 = 215,342,670

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


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