Add prime number check (basic and sqrt optimization) [GSSoC 2025]#757
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arghyaxcodes merged 2 commits intojavaistic:mainfrom Oct 18, 2025
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Adds “Check Prime Number” program with:
Basic O(n) approach (divisor counting)
Optimized O(√n) approach (skip even divisors)
Includes explanation, code, outputs, and notes on complexity and edge cases
Wired into meta.json and contents.mdx
Related: open-for-all “Java Basic Programs” (#201)