It depends upon the country.
Different countries have different number of digits. You need to be more specific.
1
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
16
A repeating decimal is a rational number. Its value is(the repeating set of digits)/(as many 9s as there are digits above).
8
A Pakistani passport number typically consists of 9 digits. The first two letters are followed by 7 digits. These digits are unique to each passport holder and are used for identification and verification purposes.
There are 9 characters or digits on a Canadian passport.
Different countries have different number of digits. You need to be more specific.
Russian passport format: RRYYSSSSSS (10 digits) R - two digits that correspond to the code assigned to the appropriate region of the Russian Federation Y - year of issuance of the passport form. New Russian passport numbers were introduced in 1997. S - six digits of the serial number
An Italian passport contains a total of 9 digits in the passport number. The format typically includes a letter followed by seven digits and ends with another letter (e.g., A1234567B). This structure helps to ensure the uniqueness of each passport number issued.
an Ethiopian national passport consists of the first six digits of a letter (1995)
United States Passport numbers are alphanumeric and contain between six and nine characters. Foreign passports contain a document number that has between six and 12 characters.
First page on your Chinese passport. Middle on the edge of right hand side with smaller font. 8 digits and vertical. Hellosisi
9 digits. the 2 first are the initials of the citizen's origin and the last 7 are numbers.
A passport number typically consists of a combination of letters and numbers, usually 9 digits long. It is unique to each passport and is used for identification and verification purposes when traveling internationally.
The USPS tracking number for a passport is a unique identifier assigned to the package when it is mailed, typically beginning with the letters "9" followed by a series of digits. You can find this number on the receipt provided by USPS when you send your passport application or when you receive your passport back. If you are expecting a passport, you can track its status online using this number on the USPS website.