Q: What are the prime factors of the number 4,216,128?

 A: 2, 3, 7, 3137

Why are those the prime factors of the number 4,216,128?

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 4,216,128

4,216,128
Factor Arrows
22,108,064
Factor Arrows
21,054,032
Factor Arrows
2527,016
Factor Arrows
2263,508
Factor Arrows
2131,754
Factor Arrows
265,877
Factor Arrows
321,959
Factor Arrows
73,137

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, 7, 3137

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 3 x 7 x 3,137 = 4,216,128

This can also be written as 26 x 31 x 71 x 3,1371 = 4,216,128

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 4,216,128:


Ask a Question