Q: What are the prime factors of the number 611,072?

 A: 2, 7, 11, 31

Why are those the prime factors of the number 611,072?

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 611,072

611,072
Factor Arrows
2305,536
Factor Arrows
2152,768
Factor Arrows
276,384
Factor Arrows
238,192
Factor Arrows
219,096
Factor Arrows
29,548
Factor Arrows
24,774
Factor Arrows
22,387
Factor Arrows
7341
Factor Arrows
1131

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, 11, 31

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 7 x 11 x 31 = 611,072

This can also be written as 28 x 71 x 111 x 311 = 611,072

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 611,072:


Ask a Question