Q: What are the prime factors of the number 368,928?

 A: 2, 3, 7, 61

Why are those the prime factors of the number 368,928?

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 368,928

368,928
Factor Arrows
2184,464
Factor Arrows
292,232
Factor Arrows
246,116
Factor Arrows
223,058
Factor Arrows
211,529
Factor Arrows
33,843
Factor Arrows
31,281
Factor Arrows
3427
Factor Arrows
761

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, 61

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 7 x 61 = 368,928

This can also be written as 25 x 33 x 71 x 611 = 368,928

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


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