Q: What are the prime factors of the number 605,360,672?

 A: 2, 7, 19, 142237

Why are those the prime factors of the number 605,360,672?

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 605,360,672

605,360,672
Factor Arrows
2302,680,336
Factor Arrows
2151,340,168
Factor Arrows
275,670,084
Factor Arrows
237,835,042
Factor Arrows
218,917,521
Factor Arrows
72,702,503
Factor Arrows
19142,237

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, 7, 19, 142237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 19 x 142,237 = 605,360,672

This can also be written as 25 x 71 x 191 x 142,2371 = 605,360,672

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


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