Q: What are the prime factors of the number 1,141,440?

 A: 2, 3, 5, 29, 41

Why are those the prime factors of the number 1,141,440?

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 1,141,440

1,141,440
Factor Arrows
2570,720
Factor Arrows
2285,360
Factor Arrows
2142,680
Factor Arrows
271,340
Factor Arrows
235,670
Factor Arrows
217,835
Factor Arrows
35,945
Factor Arrows
51,189
Factor Arrows
2941

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, 29, 41

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 5 x 29 x 41 = 1,141,440

This can also be written as 26 x 31 x 51 x 291 x 411 = 1,141,440

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 1,141,440:


Ask a Question