Q: What are the prime factors of the number 1,304,400?

 A: 2, 3, 5, 1087

Why are those the prime factors of the number 1,304,400?

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 1,304,400

1,304,400
Factor Arrows
2652,200
Factor Arrows
2326,100
Factor Arrows
2163,050
Factor Arrows
281,525
Factor Arrows
327,175
Factor Arrows
55,435
Factor Arrows
51,087

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, 1087

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 1,087 = 1,304,400

This can also be written as 24 x 31 x 52 x 1,0871 = 1,304,400

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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