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GCD Finder
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| def gcd(n, m) | |
| if (n > m) && (n * m > 0) | |
| r = n % m | |
| if r == 0 | |
| return m | |
| else | |
| return gcd(m, r) | |
| end | |
| end | |
| end | |
| puts gcd(54, 16) |
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