Q: What are the prime factors of the number 2,041,200?

 A: 2, 3, 5, 7

Why are those the prime factors of the number 2,041,200?

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 2,041,200

2,041,200
Factor Arrows
21,020,600
Factor Arrows
2510,300
Factor Arrows
2255,150
Factor Arrows
2127,575
Factor Arrows
342,525
Factor Arrows
314,175
Factor Arrows
34,725
Factor Arrows
31,575
Factor Arrows
3525
Factor Arrows
3175
Factor Arrows
535
Factor Arrows
57

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 5 x 7 = 2,041,200

This can also be written as 24 x 36 x 52 x 71 = 2,041,200

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


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