Q: What are the prime factors of the number 2,151,936?

 A: 2, 3, 467

Why are those the prime factors of the number 2,151,936?

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 2,151,936

2,151,936
Factor Arrows
21,075,968
Factor Arrows
2537,984
Factor Arrows
2268,992
Factor Arrows
2134,496
Factor Arrows
267,248
Factor Arrows
233,624
Factor Arrows
216,812
Factor Arrows
28,406
Factor Arrows
24,203
Factor Arrows
31,401
Factor Arrows
3467

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, 467

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 2 x 2 x 2 x 3 x 3 x 467 = 2,151,936

This can also be written as 29 x 32 x 4671 = 2,151,936

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 2,151,936:


Ask a Question