Q: What are the prime factors of the number 349,965?

 A: 3, 5, 7, 11, 101

Why are those the prime factors of the number 349,965?

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 349,965

349,965
Factor Arrows
3116,655
Factor Arrows
338,885
Factor Arrows
57,777
Factor Arrows
71,111
Factor Arrows
11101

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:

3, 5, 7, 11, 101

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 11 x 101 = 349,965

This can also be written as 32 x 51 x 71 x 111 x 1011 = 349,965

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


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