Q: What are the prime factors of the number 3,734,400?

 A: 2, 3, 5, 389

Why are those the prime factors of the number 3,734,400?

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 3,734,400

3,734,400
Factor Arrows
21,867,200
Factor Arrows
2933,600
Factor Arrows
2466,800
Factor Arrows
2233,400
Factor Arrows
2116,700
Factor Arrows
258,350
Factor Arrows
229,175
Factor Arrows
39,725
Factor Arrows
51,945
Factor Arrows
5389

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, 389

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 3 x 5 x 5 x 389 = 3,734,400

This can also be written as 27 x 31 x 52 x 3891 = 3,734,400

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


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