Q: What are the prime factors of the number 843,045,504?

 A: 2, 3, 7, 17, 19, 971

Why are those the prime factors of the number 843,045,504?

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 843,045,504

843,045,504
Factor Arrows
2421,522,752
Factor Arrows
2210,761,376
Factor Arrows
2105,380,688
Factor Arrows
252,690,344
Factor Arrows
226,345,172
Factor Arrows
213,172,586
Factor Arrows
26,586,293
Factor Arrows
32,195,431
Factor Arrows
7313,633
Factor Arrows
1718,449
Factor Arrows
19971

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, 7, 17, 19, 971

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 3 x 7 x 17 x 19 x 971 = 843,045,504

This can also be written as 27 x 31 x 71 x 171 x 191 x 9711 = 843,045,504

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


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