Q: What are the prime factors of the number 1,679,200?

 A: 2, 5, 2099

Why are those the prime factors of the number 1,679,200?

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 1,679,200

1,679,200
Factor Arrows
2839,600
Factor Arrows
2419,800
Factor Arrows
2209,900
Factor Arrows
2104,950
Factor Arrows
252,475
Factor Arrows
510,495
Factor Arrows
52,099

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, 5, 2099

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 2,099 = 1,679,200

This can also be written as 25 x 52 x 2,0991 = 1,679,200

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


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