Q: What are the prime factors of the number 113,043,200?

 A: 2, 5, 17, 1039

Why are those the prime factors of the number 113,043,200?

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 113,043,200

113,043,200
Factor Arrows
256,521,600
Factor Arrows
228,260,800
Factor Arrows
214,130,400
Factor Arrows
27,065,200
Factor Arrows
23,532,600
Factor Arrows
21,766,300
Factor Arrows
2883,150
Factor Arrows
2441,575
Factor Arrows
588,315
Factor Arrows
517,663
Factor Arrows
171,039

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, 17, 1039

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 5 x 5 x 17 x 1,039 = 113,043,200

This can also be written as 28 x 52 x 171 x 1,0391 = 113,043,200

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


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