Q: What are the prime factors of the number 253,552,128?

 A: 2, 3, 383, 431

Why are those the prime factors of the number 253,552,128?

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 253,552,128

253,552,128
Factor Arrows
2126,776,064
Factor Arrows
263,388,032
Factor Arrows
231,694,016
Factor Arrows
215,847,008
Factor Arrows
27,923,504
Factor Arrows
23,961,752
Factor Arrows
21,980,876
Factor Arrows
2990,438
Factor Arrows
2495,219
Factor Arrows
3165,073
Factor Arrows
383431

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, 383, 431

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 3 x 383 x 431 = 253,552,128

This can also be written as 29 x 31 x 3831 x 4311 = 253,552,128

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


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