Q: What are the prime factors of the number 42,057,600?

 A: 2, 3, 5, 13, 337

Why are those the prime factors of the number 42,057,600?

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 42,057,600

42,057,600
Factor Arrows
221,028,800
Factor Arrows
210,514,400
Factor Arrows
25,257,200
Factor Arrows
22,628,600
Factor Arrows
21,314,300
Factor Arrows
2657,150
Factor Arrows
2328,575
Factor Arrows
3109,525
Factor Arrows
521,905
Factor Arrows
54,381
Factor Arrows
13337

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, 13, 337

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 3 x 5 x 5 x 13 x 337 = 42,057,600

This can also be written as 27 x 31 x 52 x 131 x 3371 = 42,057,600

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 42,057,600:


Ask a Question