Q: What are the prime factors of the number 516,254,336?

 A: 2, 13, 557

Why are those the prime factors of the number 516,254,336?

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 516,254,336

516,254,336
Factor Arrows
2258,127,168
Factor Arrows
2129,063,584
Factor Arrows
264,531,792
Factor Arrows
232,265,896
Factor Arrows
216,132,948
Factor Arrows
28,066,474
Factor Arrows
24,033,237
Factor Arrows
13310,249
Factor Arrows
557557

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, 13, 557

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 13 x 557 x 557 = 516,254,336

This can also be written as 27 x 131 x 5572 = 516,254,336

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


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