Q: What are the prime factors of the number 492,765?

 A: 3, 5, 7, 13, 19

Why are those the prime factors of the number 492,765?

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 492,765

492,765
Factor Arrows
3164,255
Factor Arrows
532,851
Factor Arrows
74,693
Factor Arrows
13361
Factor Arrows
1919

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, 13, 19

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 13 x 19 x 19 = 492,765

This can also be written as 31 x 51 x 71 x 131 x 192 = 492,765

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


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