Q: What are the prime factors of the number 705,548,550?

 A: 2, 3, 5, 7, 59, 1627

Why are those the prime factors of the number 705,548,550?

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 705,548,550

705,548,550
Factor Arrows
2352,774,275
Factor Arrows
3117,591,425
Factor Arrows
523,518,285
Factor Arrows
54,703,657
Factor Arrows
7671,951
Factor Arrows
795,993
Factor Arrows
591,627

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, 5, 7, 59, 1627

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 7 x 59 x 1,627 = 705,548,550

This can also be written as 21 x 31 x 52 x 72 x 591 x 1,6271 = 705,548,550

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


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