Q: What are the prime factors of the number 303,765?

 A: 3, 5, 7, 11, 263

Why are those the prime factors of the number 303,765?

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 303,765

303,765
Factor Arrows
3101,255
Factor Arrows
520,251
Factor Arrows
72,893
Factor Arrows
11263

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, 263

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 11 x 263 = 303,765

This can also be written as 31 x 51 x 71 x 111 x 2631 = 303,765

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


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