Q: What are the prime factors of the number 346,112?

 A: 2, 13

Why are those the prime factors of the number 346,112?

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 346,112

346,112
Factor Arrows
2173,056
Factor Arrows
286,528
Factor Arrows
243,264
Factor Arrows
221,632
Factor Arrows
210,816
Factor Arrows
25,408
Factor Arrows
22,704
Factor Arrows
21,352
Factor Arrows
2676
Factor Arrows
2338
Factor Arrows
2169
Factor Arrows
1313

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, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 13 = 346,112

This can also be written as 211 x 132 = 346,112

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


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