Added Prime Number Calculator

[ankur-kalita]

Fixes Issue🛠️

Closes #1808

Description👨‍💻

Added Prime Number Finder feature

Type of Change📄

• [ ] Bug fix (non-breaking change which fixes a bug)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Style (non-breaking change which improves website style or formatting)
• [ ] Documentation (non-breaking change which updates or adds documentation)
• [ ] Responsiveness (non-breaking change which improves UI/UX on different screen sizes)

Checklist✅

• [ ] I am an Open Source contributor
• [ ] I have performed a self-review of my code
• [ ] My code follows the style guidelines of this project
• [ ] I have commented on my code, particularly in hard-to-understand areas

Screenshots/GIF📷

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[ankur-kalita]

heyy @NaveenChandraAdhikari @pb0126 @NIKHIL0VERMA @Rakesh9100 , can you please review it ?

[Rakesh9100]

Please do not create a PR until you have been assigned to an issue @ankur-kalita