Q: What are the prime factors of the number 550,365,120?

 A: 2, 3, 5, 191099

Why are those the prime factors of the number 550,365,120?

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 550,365,120

550,365,120
Factor Arrows
2275,182,560
Factor Arrows
2137,591,280
Factor Arrows
268,795,640
Factor Arrows
234,397,820
Factor Arrows
217,198,910
Factor Arrows
28,599,455
Factor Arrows
32,866,485
Factor Arrows
3955,495
Factor Arrows
5191,099

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, 191099

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 3 x 3 x 5 x 191,099 = 550,365,120

This can also be written as 26 x 32 x 51 x 191,0991 = 550,365,120

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


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