Q: What are the prime factors of the number 493,000?

 A: 2, 5, 17, 29

Why are those the prime factors of the number 493,000?

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 493,000

493,000
Factor Arrows
2246,500
Factor Arrows
2123,250
Factor Arrows
261,625
Factor Arrows
512,325
Factor Arrows
52,465
Factor Arrows
5493
Factor Arrows
1729

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, 5, 17, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 5 x 17 x 29 = 493,000

This can also be written as 23 x 53 x 171 x 291 = 493,000

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


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