feat(Golang): [Basics/Primality Test]

[haragam22]

🚀 Submission Checklist

• My code is placed in the correct Languages/Go/SyntaxBasics/prime_check.go
• My code is functional and includes necessary comments.
• This PR addresses an existing issue.

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🔗 Linked Issue

Closes #77

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🧩 Description

Added a Go implementation of Prime Check under the SyntaxBasics section.
This program checks whether a number is prime using an efficient 6k ± 1 optimization, demonstrating Go’s basic syntax, loops, and conditionals.

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🧠 Features

• ✅ Clean and beginner-friendly Go code
• 🔁 Efficient prime-checking using 6k ± 1 approach
• 🧩 Handles numbers less than 2, small primes, and larger inputs
• 💬 Displays result clearly with sample input/output
• 🧠 Strengthens the Go SyntaxBasics folder with a fundamental math example

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🧪 Example Run

Input:

17

Output:

17 prime? true

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🖥️ Verification

Tested locally in terminal using:

go run Languages/Go/SyntaxBasics/prime_check.go

✅ Works for various test cases (e.g., 1, 2, 3, 16, 17, 23)
✅ Handles invalid or small inputs gracefully

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🏷️ Commit Message

feat(Go): Add Prime Check implementation under SyntaxBasics

[haragam22]

kindly review this pr for hacktoberfest 2025 at the erliest.