how to reset ipad to factory setting with no password and no need to recover data in ipad

Resetting the iPad to factory settings will not remove the associated Activation Lock if active.

The Activation Lock, if active (assumed), can only be removed from Apple'a back-end Security/Activation servers using the Apple Account credentials (previously known as the AppleID) that was last used to successfully activate the device. Without these Apple Account credentials, the iPad is and will remain unusable by anyone.

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

Here are the Apple support pages that outline the Activation Lock - and the only mechanisms by which it can be satisfied:

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Turn off Activation Lock – Apple Support

To reiterate, unless you are the owner of the AppleID that was last used to activate the device, you’ll not be able to defeat or bypass the Activation Lock. With documentary evidence that you are the original owner (such as the original sales receipt showing the serial number), Apple may be prepared to assist - otherwise they and nobody here will be able to help you.

Are you referring to the Apple Account password? or to the iPad's screen unlock passcode?

You don't need the passcode, but you will need the Apple Account password once the iPad is restored.

click here ➜ If you can't update or restore your iPad - Apple Support