Q: What are the prime factors of the number 838,571,680?

 A: 2, 5, 619, 8467

Why are those the prime factors of the number 838,571,680?

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 838,571,680

838,571,680
Factor Arrows
2419,285,840
Factor Arrows
2209,642,920
Factor Arrows
2104,821,460
Factor Arrows
252,410,730
Factor Arrows
226,205,365
Factor Arrows
55,241,073
Factor Arrows
6198,467

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, 5, 619, 8467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 619 x 8,467 = 838,571,680

This can also be written as 25 x 51 x 6191 x 8,4671 = 838,571,680

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


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