Q: What are the prime factors of the number 355,104?

 A: 2, 3, 137

Why are those the prime factors of the number 355,104?

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 355,104

355,104
Factor Arrows
2177,552
Factor Arrows
288,776
Factor Arrows
244,388
Factor Arrows
222,194
Factor Arrows
211,097
Factor Arrows
33,699
Factor Arrows
31,233
Factor Arrows
3411
Factor Arrows
3137

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, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 137 = 355,104

This can also be written as 25 x 34 x 1371 = 355,104

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


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