Q: What are the prime factors of the number 522,261,168?

 A: 2, 3, 11, 13, 6917

Why are those the prime factors of the number 522,261,168?

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 522,261,168

522,261,168
Factor Arrows
2261,130,584
Factor Arrows
2130,565,292
Factor Arrows
265,282,646
Factor Arrows
232,641,323
Factor Arrows
310,880,441
Factor Arrows
11989,131
Factor Arrows
1189,921
Factor Arrows
136,917

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, 11, 13, 6917

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 11 x 13 x 6,917 = 522,261,168

This can also be written as 24 x 31 x 112 x 131 x 6,9171 = 522,261,168

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


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