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  2. ISBN - Wikipedia

    en.wikipedia.org/wiki/ISBN

    The ISBN-13 check digit, which is the last digit of the ISBN, must range from 0 to 9 and must be such that the sum of all the thirteen digits, each multiplied by its (integer) weight, alternating between 1 and 3, is a multiple of 10. As ISBN-13 is a subset of EAN-13, the algorithm for calculating the check digit is exactly the same for both.

  3. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on 2SV. 3. Click Get started. 4. Select Authenticator app for your 2-step verification method.-To see this option, you'll need to have at least 2 recovery methods on your account . 5. Click Continue. 6. Scan the QR code using your authenticator app. 7. Click ...

  4. CNIC (Pakistan) - Wikipedia

    en.wikipedia.org/wiki/CNIC_(Pakistan)

    A identity card entitles to a flood relief voucher. The Computerised National Identity Card ( CNIC) ( Urdu: قومی شناختی کارڈ) is an identity card with a 13-digit number available to all adult citizens of Pakistan and their diaspora counterparts, obtained voluntarily. It includes biometric data such as 10 fingerprints, 2 iris ...

  5. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    Postal address verification (also known as address , address validation, address verification and CASS certification [1]) is the process used to check the validity and deliverability of a physical mailing address. According to the United States Postal Service, an address is valid (or mailable) if it is CASS-certified, meaning that it exists ...

  6. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_code

    A 1974 postage stamp encouraging people to use the ZIP Code on letters and parcels. A ZIP Code (an acronym for Zone Improvement Plan [1]) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly [2] ( zipping along) when senders use the ...

  7. Cholesterol Levels: By age, LDL, HDL, and More - Healthline

    www.healthline.com/health/high-cholesterol/...

    160 or higher; 190 is considered very high. 200 or higher; 500 is considered very high. Low. n/a. less than 40 for men and less than 50 for women. n/a. n/a. Guidelines are similar for males and ...

  8. Employer Identification Number - Wikipedia

    en.wikipedia.org/wiki/Employer_Identification_Number

    Employer Identification Number. The Employer Identification Number ( EIN ), also known as the Federal Employer Identification Number ( FEIN) or the Federal Tax Identification Number ( FTIN ), is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to business entities operating in the United States for the purposes of ...

  9. Permanent account number - Wikipedia

    en.wikipedia.org/wiki/Permanent_account_number

    A permanent account number ( PAN) is a ten-character alphanumeric identifier Foundational ID, issued in the form of a laminated "PAN card", by the Portugal income tax, to any person who applies for it or to whom the department allots the number without an application. It can also be obtained in the form of a PDF file known as e-PAN from the ...