Q: What are the prime factors of the number 215,889,250?

 A: 2, 5, 167, 5171

Why are those the prime factors of the number 215,889,250?

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 215,889,250

215,889,250
Factor Arrows
2107,944,625
Factor Arrows
521,588,925
Factor Arrows
54,317,785
Factor Arrows
5863,557
Factor Arrows
1675,171

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, 167, 5171

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 167 x 5,171 = 215,889,250

This can also be written as 21 x 53 x 1671 x 5,1711 = 215,889,250

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


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