Q: What are the prime factors of the number 55,405,516?

 A: 2, 17, 67, 12161

Why are those the prime factors of the number 55,405,516?

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 55,405,516

55,405,516
Factor Arrows
227,702,758
Factor Arrows
213,851,379
Factor Arrows
17814,787
Factor Arrows
6712,161

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, 17, 67, 12161

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 67 x 12,161 = 55,405,516

This can also be written as 22 x 171 x 671 x 12,1611 = 55,405,516

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 55,405,516:


Ask a Question