Q: What are the prime factors of the number 266,676,800?

 A: 2, 5, 13, 12821

Why are those the prime factors of the number 266,676,800?

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 266,676,800

266,676,800
Factor Arrows
2133,338,400
Factor Arrows
266,669,200
Factor Arrows
233,334,600
Factor Arrows
216,667,300
Factor Arrows
28,333,650
Factor Arrows
24,166,825
Factor Arrows
5833,365
Factor Arrows
5166,673
Factor Arrows
1312,821

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, 13, 12821

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 13 x 12,821 = 266,676,800

This can also be written as 26 x 52 x 131 x 12,8211 = 266,676,800

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


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