Q: What are the prime factors of the number 1,016,400?

 A: 2, 3, 5, 7, 11

Why are those the prime factors of the number 1,016,400?

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 1,016,400

1,016,400
Factor Arrows
2508,200
Factor Arrows
2254,100
Factor Arrows
2127,050
Factor Arrows
263,525
Factor Arrows
321,175
Factor Arrows
54,235
Factor Arrows
5847
Factor Arrows
7121
Factor Arrows
1111

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, 7, 11

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 5 x 7 x 11 x 11 = 1,016,400

This can also be written as 24 x 31 x 52 x 71 x 112 = 1,016,400

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 1,016,400:


Ask a Question