Q: What are the prime factors of the number 1,457,568?

 A: 2, 3, 7, 241

Why are those the prime factors of the number 1,457,568?

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 1,457,568

1,457,568
Factor Arrows
2728,784
Factor Arrows
2364,392
Factor Arrows
2182,196
Factor Arrows
291,098
Factor Arrows
245,549
Factor Arrows
315,183
Factor Arrows
35,061
Factor Arrows
31,687
Factor Arrows
7241

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, 7, 241

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 3 x 3 x 7 x 241 = 1,457,568

This can also be written as 25 x 33 x 71 x 2411 = 1,457,568

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


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