Q: What are the prime factors of the number 285,257,800?

 A: 2, 5, 1426289

Why are those the prime factors of the number 285,257,800?

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 285,257,800

285,257,800
Factor Arrows
2142,628,900
Factor Arrows
271,314,450
Factor Arrows
235,657,225
Factor Arrows
57,131,445
Factor Arrows
51,426,289

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, 1426289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 1,426,289 = 285,257,800

This can also be written as 23 x 52 x 1,426,2891 = 285,257,800

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


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