Q: What are the prime factors of the number 33,291,440?

 A: 2, 5, 7, 13, 17, 269

Why are those the prime factors of the number 33,291,440?

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 33,291,440

33,291,440
Factor Arrows
216,645,720
Factor Arrows
28,322,860
Factor Arrows
24,161,430
Factor Arrows
22,080,715
Factor Arrows
5416,143
Factor Arrows
759,449
Factor Arrows
134,573
Factor Arrows
17269

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, 5, 7, 13, 17, 269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 13 x 17 x 269 = 33,291,440

This can also be written as 24 x 51 x 71 x 131 x 171 x 2691 = 33,291,440

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 33,291,440:


Ask a Question