When I try to log in to my Microsoft account, it responds with nonsense

The 2‑digit number prompt means the sign-in is waiting for approval inside Microsoft Authenticator, not for you to type that same number back into the app.

What is happening

• The sign-in screen shows a 2‑digit number (for example, 37).
• In Microsoft Authenticator, a prompt appears asking to approve the sign-in and to select/tap the same 2‑digit number shown on the sign-in screen.
• If already inside Authenticator and only seeing that same number as a code, it usually means the app is showing the number match prompt, not a place to enter a code.

How to complete the sign-in

1. On the device where the sign-in is happening (browser/ app):
   • Leave the screen that shows the 2‑digit number open.
2. On the phone with Microsoft Authenticator:
   • Look for a notification or a pending sign-in request in the app.
   • Tap that request.
   • The app should show three numbers (for example 12, 37, 84).
   • Tap the number that matches the one shown on the sign-in screen.
3. After tapping the matching number, the sign-in should complete automatically.

If the app only shows the same number and no choices

• Ensure the sign-in request is actually pending (sometimes it times out; try signing in again).
• Make sure there is another verification method available (SMS, email, etc.) so a different method can be used if Authenticator is stuck.
• If no alternative method exists and the loop continues, contact the account administrator (for work/school accounts) to reset MFA, or use the sign-in helper / recovery options for personal accounts as described in the verification-code troubleshooting articles.

References:

• Troubleshoot Microsoft verification code issues
• Common problems with two-step verification for a work or school account
• How to add your accounts to Microsoft Authenticator
• Microsoft authenticator sending me into a spiral - Microsoft Q&A
• Microsoft Authenticator app doesn't show 6-digit OTP code - Microsoft Q&A