Q: What are the prime factors of the number 1,799,600?

 A: 2, 5, 11, 409

Why are those the prime factors of the number 1,799,600?

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 1,799,600

1,799,600
Factor Arrows
2899,800
Factor Arrows
2449,900
Factor Arrows
2224,950
Factor Arrows
2112,475
Factor Arrows
522,495
Factor Arrows
54,499
Factor Arrows
11409

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, 11, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 11 x 409 = 1,799,600

This can also be written as 24 x 52 x 111 x 4091 = 1,799,600

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


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