Q: What are the prime factors of the number 2,551,740?

 A: 2, 3, 5, 71, 599

Why are those the prime factors of the number 2,551,740?

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 2,551,740

2,551,740
Factor Arrows
21,275,870
Factor Arrows
2637,935
Factor Arrows
3212,645
Factor Arrows
542,529
Factor Arrows
71599

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, 71, 599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 71 x 599 = 2,551,740

This can also be written as 22 x 31 x 51 x 711 x 5991 = 2,551,740

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 2,551,740:


Ask a Question