Q: What are the prime factors of the number 348,992?

 A: 2, 7, 19, 41

Why are those the prime factors of the number 348,992?

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 348,992

348,992
Factor Arrows
2174,496
Factor Arrows
287,248
Factor Arrows
243,624
Factor Arrows
221,812
Factor Arrows
210,906
Factor Arrows
25,453
Factor Arrows
7779
Factor Arrows
1941

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, 7, 19, 41

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 7 x 19 x 41 = 348,992

This can also be written as 26 x 71 x 191 x 411 = 348,992

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


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