Q: What are the prime factors of the number 516,403,552?

 A: 2, 7, 61, 5399

Why are those the prime factors of the number 516,403,552?

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 516,403,552

516,403,552
Factor Arrows
2258,201,776
Factor Arrows
2129,100,888
Factor Arrows
264,550,444
Factor Arrows
232,275,222
Factor Arrows
216,137,611
Factor Arrows
72,305,373
Factor Arrows
7329,339
Factor Arrows
615,399

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, 7, 61, 5399

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 61 x 5,399 = 516,403,552

This can also be written as 25 x 72 x 611 x 5,3991 = 516,403,552

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


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