Q: What are the prime factors of the number 1,455,360?

 A: 2, 3, 5, 379

Why are those the prime factors of the number 1,455,360?

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 1,455,360

1,455,360
Factor Arrows
2727,680
Factor Arrows
2363,840
Factor Arrows
2181,920
Factor Arrows
290,960
Factor Arrows
245,480
Factor Arrows
222,740
Factor Arrows
211,370
Factor Arrows
25,685
Factor Arrows
31,895
Factor Arrows
5379

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, 379

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 3 x 5 x 379 = 1,455,360

This can also be written as 28 x 31 x 51 x 3791 = 1,455,360

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 1,455,360:


Ask a Question