Q: What are the prime factors of the number 57,647,520?

 A: 2, 3, 5, 7, 19, 43

Why are those the prime factors of the number 57,647,520?

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 57,647,520

57,647,520
Factor Arrows
228,823,760
Factor Arrows
214,411,880
Factor Arrows
27,205,940
Factor Arrows
23,602,970
Factor Arrows
21,801,485
Factor Arrows
3600,495
Factor Arrows
3200,165
Factor Arrows
540,033
Factor Arrows
75,719
Factor Arrows
7817
Factor Arrows
1943

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, 5, 7, 19, 43

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 5 x 7 x 7 x 19 x 43 = 57,647,520

This can also be written as 25 x 32 x 51 x 72 x 191 x 431 = 57,647,520

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 57,647,520:


Ask a Question