Q: What are the prime factors of the number 253,684,872?

 A: 2, 3, 7, 55927

Why are those the prime factors of the number 253,684,872?

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 253,684,872

253,684,872
Factor Arrows
2126,842,436
Factor Arrows
263,421,218
Factor Arrows
231,710,609
Factor Arrows
310,570,203
Factor Arrows
33,523,401
Factor Arrows
31,174,467
Factor Arrows
3391,489
Factor Arrows
755,927

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, 7, 55927

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 7 x 55,927 = 253,684,872

This can also be written as 23 x 34 x 71 x 55,9271 = 253,684,872

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


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