Q: What are the prime factors of the number 1,624,448?

 A: 2, 7, 37

Why are those the prime factors of the number 1,624,448?

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 1,624,448

1,624,448
Factor Arrows
2812,224
Factor Arrows
2406,112
Factor Arrows
2203,056
Factor Arrows
2101,528
Factor Arrows
250,764
Factor Arrows
225,382
Factor Arrows
212,691
Factor Arrows
71,813
Factor Arrows
7259
Factor Arrows
737

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, 37

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 7 x 7 x 7 x 37 = 1,624,448

This can also be written as 27 x 73 x 371 = 1,624,448

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 1,624,448:


Ask a Question