Q: What are the prime factors of the number 516,160,768?

 A: 2, 47, 42899

Why are those the prime factors of the number 516,160,768?

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 516,160,768

516,160,768
Factor Arrows
2258,080,384
Factor Arrows
2129,040,192
Factor Arrows
264,520,096
Factor Arrows
232,260,048
Factor Arrows
216,130,024
Factor Arrows
28,065,012
Factor Arrows
24,032,506
Factor Arrows
22,016,253
Factor Arrows
4742,899

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, 47, 42899

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 2 x 2 x 47 x 42,899 = 516,160,768

This can also be written as 28 x 471 x 42,8991 = 516,160,768

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


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