Q: What are the prime factors of the number 258,341,250?

 A: 2, 3, 5, 68891

Why are those the prime factors of the number 258,341,250?

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 258,341,250

258,341,250
Factor Arrows
2129,170,625
Factor Arrows
343,056,875
Factor Arrows
58,611,375
Factor Arrows
51,722,275
Factor Arrows
5344,455
Factor Arrows
568,891

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, 5, 68891

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 5 x 68,891 = 258,341,250

This can also be written as 21 x 31 x 54 x 68,8911 = 258,341,250

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


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