Q: What are the prime factors of the number 529,248?

 A: 2, 3, 37, 149

Why are those the prime factors of the number 529,248?

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 529,248

529,248
Factor Arrows
2264,624
Factor Arrows
2132,312
Factor Arrows
266,156
Factor Arrows
233,078
Factor Arrows
216,539
Factor Arrows
35,513
Factor Arrows
37149

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, 3, 37, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 37 x 149 = 529,248

This can also be written as 25 x 31 x 371 x 1491 = 529,248

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


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