Q: What are the prime factors of the number 254,784,110?

 A: 2, 5, 7, 19, 23, 8329

Why are those the prime factors of the number 254,784,110?

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 254,784,110

254,784,110
Factor Arrows
2127,392,055
Factor Arrows
525,478,411
Factor Arrows
73,639,773
Factor Arrows
19191,567
Factor Arrows
238,329

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, 7, 19, 23, 8329

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 19 x 23 x 8,329 = 254,784,110

This can also be written as 21 x 51 x 71 x 191 x 231 x 8,3291 = 254,784,110

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


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