Q: What are the prime factors of the number 605,342,650?

 A: 2, 5, 11, 61, 18043

Why are those the prime factors of the number 605,342,650?

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 605,342,650

605,342,650
Factor Arrows
2302,671,325
Factor Arrows
560,534,265
Factor Arrows
512,106,853
Factor Arrows
111,100,623
Factor Arrows
6118,043

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, 11, 61, 18043

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 61 x 18,043 = 605,342,650

This can also be written as 21 x 52 x 111 x 611 x 18,0431 = 605,342,650

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


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