Q: What are the prime factors of the number 516,285?

 A: 3, 5, 7, 11, 149

Why are those the prime factors of the number 516,285?

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 516,285

516,285
Factor Arrows
3172,095
Factor Arrows
357,365
Factor Arrows
511,473
Factor Arrows
71,639
Factor Arrows
11149

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, 149

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 11 x 149 = 516,285

This can also be written as 32 x 51 x 71 x 111 x 1491 = 516,285

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


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