Q: What are the prime factors of the number 390,033?

 A: 3, 7, 41, 151

Why are those the prime factors of the number 390,033?

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 390,033

390,033
Factor Arrows
3130,011
Factor Arrows
343,337
Factor Arrows
76,191
Factor Arrows
41151

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:

3, 7, 41, 151

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 41 x 151 = 390,033

This can also be written as 32 x 71 x 411 x 1511 = 390,033

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


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