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Is a number prime?
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| # Test if number is prime | |
| def isPrime(num) | |
| for d in 2..(num - 1) | |
| if (num % d) == 0 | |
| return false | |
| end | |
| end | |
| true | |
| end |
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Description
Given a number, define if it's a prime number or no