Nowadays, many people verify their identity information through online inquiry, such as Lucky Search. Just open WeChat, search: Lucky Search, fill in the name, ID number, and verify the consistency, attribution, date of birth and other information, which is very convenient and saves time.
The check code in the identity number is the last digit of the identity number, which is related to the provisions of the identity number and is calculated according to the calculation formula of honey refining. Identity number is a kind of characteristic combination code, which consists of 17 digit digital ontology code and digital check code.
Every bit of the identification of the 18 digit is regular, and the 18 bit is the check bit. The first 17 bits are weighted and remapped, and the result is unique. But there is only one result: that is, whether the algorithm of this identity number is correct or incorrect, and whether it really exists is not guaranteed.
The last two are singular for men and even women, and the first six can be analyzed as provinces, cities, counties and towns, followed by birthdays, which is more obvious. The last three are random and only have a little relationship with the local police station. You can make a simple judgment based on this information.