If you have an existing Student Account (username) with Prodigy you can link it to your Google account!
After linking accounts, you can simply sign in with Google going forward.
1. Navigate to Prodigy and select Log in.
2. Select the Google button!
3a. If you are not signed in to a Google account on this browser, you’ll be prompted to do.
Enter your Google email address and click "Next", then enter your Google password and click "Next" to proceed.
3b. If you sign into (or are already signed into) a Google account on this browser with multiple email addresses associated with it, you will be asked to choose which email address you’d like to link to your Prodigy account.
4. Click on "I have a Prodigy account", then enter your Prodigy Username and Password.
Since you're linking a student account, you'll want to input a Prodigy Username and not an email. Using the email address will cause a conflict and not link properly in the system.
And you're done, you can now proceed with your account and log in with Google!