Q: What are the prime factors of the number 229,770?

 A: 2, 3, 5, 23, 37

Why are those the prime factors of the number 229,770?

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 229,770

229,770
Factor Arrows
2114,885
Factor Arrows
338,295
Factor Arrows
312,765
Factor Arrows
34,255
Factor Arrows
5851
Factor Arrows
2337

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, 23, 37

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 23 x 37 = 229,770

This can also be written as 21 x 33 x 51 x 231 x 371 = 229,770

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


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