Q: What are the prime factors of the number 253,425,368?

 A: 2, 7, 283, 15991

Why are those the prime factors of the number 253,425,368?

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 253,425,368

253,425,368
Factor Arrows
2126,712,684
Factor Arrows
263,356,342
Factor Arrows
231,678,171
Factor Arrows
74,525,453
Factor Arrows
28315,991

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, 7, 283, 15991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 283 x 15,991 = 253,425,368

This can also be written as 23 x 71 x 2831 x 15,9911 = 253,425,368

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


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