Q: What are the prime factors of the number 253,267,200?

 A: 2, 3, 5, 4397

Why are those the prime factors of the number 253,267,200?

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 253,267,200

253,267,200
Factor Arrows
2126,633,600
Factor Arrows
263,316,800
Factor Arrows
231,658,400
Factor Arrows
215,829,200
Factor Arrows
27,914,600
Factor Arrows
23,957,300
Factor Arrows
21,978,650
Factor Arrows
2989,325
Factor Arrows
3329,775
Factor Arrows
3109,925
Factor Arrows
521,985
Factor Arrows
54,397

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, 3, 5, 4397

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 3 x 3 x 5 x 5 x 4,397 = 253,267,200

This can also be written as 28 x 32 x 52 x 4,3971 = 253,267,200

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


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