Q: What are the prime factors of the number 1,494,272?

 A: 2, 13, 449

Why are those the prime factors of the number 1,494,272?

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 1,494,272

1,494,272
Factor Arrows
2747,136
Factor Arrows
2373,568
Factor Arrows
2186,784
Factor Arrows
293,392
Factor Arrows
246,696
Factor Arrows
223,348
Factor Arrows
211,674
Factor Arrows
25,837
Factor Arrows
13449

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, 13, 449

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 2 x 2 x 13 x 449 = 1,494,272

This can also be written as 28 x 131 x 4491 = 1,494,272

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


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