Q: What are the prime factors of the number 1,576,512?

 A: 2, 3, 7, 17, 23

Why are those the prime factors of the number 1,576,512?

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 1,576,512

1,576,512
Factor Arrows
2788,256
Factor Arrows
2394,128
Factor Arrows
2197,064
Factor Arrows
298,532
Factor Arrows
249,266
Factor Arrows
224,633
Factor Arrows
38,211
Factor Arrows
32,737
Factor Arrows
7391
Factor Arrows
1723

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, 17, 23

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 3 x 7 x 17 x 23 = 1,576,512

This can also be written as 26 x 32 x 71 x 171 x 231 = 1,576,512

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 1,576,512:


Ask a Question