Q: What are the prime factors of the number 238,370?

 A: 2, 5, 11, 197

Why are those the prime factors of the number 238,370?

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 238,370

238,370
Factor Arrows
2119,185
Factor Arrows
523,837
Factor Arrows
112,167
Factor Arrows
11197

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, 197

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 11 x 197 = 238,370

This can also be written as 21 x 51 x 112 x 1971 = 238,370

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


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