Q: What are the prime factors of the number 1,551,120?

 A: 2, 3, 5, 23, 281

Why are those the prime factors of the number 1,551,120?

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 1,551,120

1,551,120
Factor Arrows
2775,560
Factor Arrows
2387,780
Factor Arrows
2193,890
Factor Arrows
296,945
Factor Arrows
332,315
Factor Arrows
56,463
Factor Arrows
23281

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, 5, 23, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 23 x 281 = 1,551,120

This can also be written as 24 x 31 x 51 x 231 x 2811 = 1,551,120

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 1,551,120:


Ask a Question