Q: What are the prime factors of the number 15,318,600?

 A: 2, 3, 5, 11, 211

Why are those the prime factors of the number 15,318,600?

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 15,318,600

15,318,600
Factor Arrows
27,659,300
Factor Arrows
23,829,650
Factor Arrows
21,914,825
Factor Arrows
3638,275
Factor Arrows
5127,655
Factor Arrows
525,531
Factor Arrows
112,321
Factor Arrows
11211

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, 11, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 11 x 11 x 211 = 15,318,600

This can also be written as 23 x 31 x 52 x 112 x 2111 = 15,318,600

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 15,318,600:


Ask a Question