Q: What are the prime factors of the number 16,268,800?

 A: 2, 5, 31, 41

Why are those the prime factors of the number 16,268,800?

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 16,268,800

16,268,800
Factor Arrows
28,134,400
Factor Arrows
24,067,200
Factor Arrows
22,033,600
Factor Arrows
21,016,800
Factor Arrows
2508,400
Factor Arrows
2254,200
Factor Arrows
2127,100
Factor Arrows
263,550
Factor Arrows
231,775
Factor Arrows
56,355
Factor Arrows
51,271
Factor Arrows
3141

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, 31, 41

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 2 x 2 x 5 x 5 x 31 x 41 = 16,268,800

This can also be written as 29 x 52 x 311 x 411 = 16,268,800

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


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