Q: What are the prime factors of the number 1,383,872?

 A: 2, 7, 3089

Why are those the prime factors of the number 1,383,872?

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 1,383,872

1,383,872
Factor Arrows
2691,936
Factor Arrows
2345,968
Factor Arrows
2172,984
Factor Arrows
286,492
Factor Arrows
243,246
Factor Arrows
221,623
Factor Arrows
73,089

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, 7, 3089

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 7 x 3,089 = 1,383,872

This can also be written as 26 x 71 x 3,0891 = 1,383,872

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 1,383,872:


Ask a Question