Q: What are the prime factors of the number 18,254,656?

 A: 2, 7, 5821

Why are those the prime factors of the number 18,254,656?

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 18,254,656

18,254,656
Factor Arrows
29,127,328
Factor Arrows
24,563,664
Factor Arrows
22,281,832
Factor Arrows
21,140,916
Factor Arrows
2570,458
Factor Arrows
2285,229
Factor Arrows
740,747
Factor Arrows
75,821

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, 5821

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 7 x 7 x 5,821 = 18,254,656

This can also be written as 26 x 72 x 5,8211 = 18,254,656

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 18,254,656:


Ask a Question