Q: What are the prime factors of the number 258,250,344?

 A: 2, 3, 11, 53, 18457

Why are those the prime factors of the number 258,250,344?

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 258,250,344

258,250,344
Factor Arrows
2129,125,172
Factor Arrows
264,562,586
Factor Arrows
232,281,293
Factor Arrows
310,760,431
Factor Arrows
11978,221
Factor Arrows
5318,457

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, 11, 53, 18457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 53 x 18,457 = 258,250,344

This can also be written as 23 x 31 x 111 x 531 x 18,4571 = 258,250,344

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


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