Q: What are the prime factors of the number 822,505,288?

 A: 2, 11, 17, 19, 1523

Why are those the prime factors of the number 822,505,288?

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 822,505,288

822,505,288
Factor Arrows
2411,252,644
Factor Arrows
2205,626,322
Factor Arrows
2102,813,161
Factor Arrows
119,346,651
Factor Arrows
17549,803
Factor Arrows
1928,937
Factor Arrows
191,523

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, 17, 19, 1523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 17 x 19 x 19 x 1,523 = 822,505,288

This can also be written as 23 x 111 x 171 x 192 x 1,5231 = 822,505,288

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


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