Q: What are the prime factors of the number 1,529,280?

 A: 2, 3, 5, 59

Why are those the prime factors of the number 1,529,280?

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 1,529,280

1,529,280
Factor Arrows
2764,640
Factor Arrows
2382,320
Factor Arrows
2191,160
Factor Arrows
295,580
Factor Arrows
247,790
Factor Arrows
223,895
Factor Arrows
37,965
Factor Arrows
32,655
Factor Arrows
3885
Factor Arrows
3295
Factor Arrows
559

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, 5, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 59 = 1,529,280

This can also be written as 26 x 34 x 51 x 591 = 1,529,280

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


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