Q: What are the prime factors of the number 261,026,128?

 A: 2, 11, 1483103

Why are those the prime factors of the number 261,026,128?

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 261,026,128

261,026,128
Factor Arrows
2130,513,064
Factor Arrows
265,256,532
Factor Arrows
232,628,266
Factor Arrows
216,314,133
Factor Arrows
111,483,103

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, 11, 1483103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 1,483,103 = 261,026,128

This can also be written as 24 x 111 x 1,483,1031 = 261,026,128

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


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