Q: What are the prime factors of the number 346,944?

 A: 2, 3, 13, 139

Why are those the prime factors of the number 346,944?

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 346,944

346,944
Factor Arrows
2173,472
Factor Arrows
286,736
Factor Arrows
243,368
Factor Arrows
221,684
Factor Arrows
210,842
Factor Arrows
25,421
Factor Arrows
31,807
Factor Arrows
13139

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, 13, 139

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 3 x 13 x 139 = 346,944

This can also be written as 26 x 31 x 131 x 1391 = 346,944

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


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