Q: What are the prime factors of the number 23,243,200?

 A: 2, 5, 73, 199

Why are those the prime factors of the number 23,243,200?

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 23,243,200

23,243,200
Factor Arrows
211,621,600
Factor Arrows
25,810,800
Factor Arrows
22,905,400
Factor Arrows
21,452,700
Factor Arrows
2726,350
Factor Arrows
2363,175
Factor Arrows
572,635
Factor Arrows
514,527
Factor Arrows
73199

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, 73, 199

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 5 x 5 x 73 x 199 = 23,243,200

This can also be written as 26 x 52 x 731 x 1991 = 23,243,200

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


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