Q: What are the prime factors of the number 1,823,040?

 A: 2, 3, 5, 211

Why are those the prime factors of the number 1,823,040?

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 1,823,040

1,823,040
Factor Arrows
2911,520
Factor Arrows
2455,760
Factor Arrows
2227,880
Factor Arrows
2113,940
Factor Arrows
256,970
Factor Arrows
228,485
Factor Arrows
39,495
Factor Arrows
33,165
Factor Arrows
31,055
Factor Arrows
5211

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, 211

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 3 x 5 x 211 = 1,823,040

This can also be written as 26 x 33 x 51 x 2111 = 1,823,040

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 1,823,040:


Ask a Question