Q: What are the prime factors of the number 1,441,280?

 A: 2, 5, 563

Why are those the prime factors of the number 1,441,280?

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 1,441,280

1,441,280
Factor Arrows
2720,640
Factor Arrows
2360,320
Factor Arrows
2180,160
Factor Arrows
290,080
Factor Arrows
245,040
Factor Arrows
222,520
Factor Arrows
211,260
Factor Arrows
25,630
Factor Arrows
22,815
Factor Arrows
5563

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, 5, 563

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 2 x 5 x 563 = 1,441,280

This can also be written as 29 x 51 x 5631 = 1,441,280

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


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