Q: What are the prime factors of the number 263,261,682?

 A: 2, 3, 19, 157, 4903

Why are those the prime factors of the number 263,261,682?

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 263,261,682

263,261,682
Factor Arrows
2131,630,841
Factor Arrows
343,876,947
Factor Arrows
314,625,649
Factor Arrows
19769,771
Factor Arrows
1574,903

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, 19, 157, 4903

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 19 x 157 x 4,903 = 263,261,682

This can also be written as 21 x 32 x 191 x 1571 x 4,9031 = 263,261,682

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


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