Q: What are the prime factors of the number 453,152?

 A: 2, 7, 17

Why are those the prime factors of the number 453,152?

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 453,152

453,152
Factor Arrows
2226,576
Factor Arrows
2113,288
Factor Arrows
256,644
Factor Arrows
228,322
Factor Arrows
214,161
Factor Arrows
72,023
Factor Arrows
7289
Factor Arrows
1717

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, 7, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 17 x 17 = 453,152

This can also be written as 25 x 72 x 172 = 453,152

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


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