Q: What are the prime factors of the number 415,338?

 A: 2, 3, 7, 11, 29, 31

Why are those the prime factors of the number 415,338?

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 415,338

415,338
Factor Arrows
2207,669
Factor Arrows
369,223
Factor Arrows
79,889
Factor Arrows
11899
Factor Arrows
2931

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, 7, 11, 29, 31

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 11 x 29 x 31 = 415,338

This can also be written as 21 x 31 x 71 x 111 x 291 x 311 = 415,338

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


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