[Feature] Add Strong Number Calculator

[KajalBhatt123]

Description

I propose integrating a strong number calculator.

Details: A Strong number (also known as a KrishnaMurthy number) is a number whose sum of the factorial of its digits equals the number itself. For instance, 145 is a Krishnamurthy number because 1!+4!+5!=145.

Screenshots

No response

Checklist

• [X] I have checked the existing issues.
• [X] I follow Contributing Guidelines of this project.
• [X] I am a GSSOC'24 contributor.
• [ ] I am a IWOC'24 contributor.
• [ ] I am a JWOC'24 contributor.
• [ ] I am a SWOC'24 contributor.

Code of Conduct

• [X] I agree to follow this project's "Code of Conduct".

[github-actions[bot]]

Hey @KajalBhatt123, Welcome to the project CalcDiverse! 🎊 Thanks for opening an issue! 🙌 Please wait for the issue to be assigned. Happy Coding!! ✨

[BagchiShreya]

Hii @Rakesh9100 I would like to work on this issue and it would be great if you assign this issue to me.

[jessicachawla]

@KajalBhatt123 keep the name as strong number.

[Rakesh9100]

Go ahead @KajalBhatt123

[github-actions[bot]]

Hello @KajalBhatt123! Your issue #1556 has been closed. Thank you for your contribution!! 🙌