Is the ID number singular? Is it a man or a woman?

Odd numbers (odd numbers) indicate that the host is male, and even numbers (even numbers) indicate that the host is female.

The mantissa of the ID card is a check code, which is calculated according to the previous 17 bit code and the check code of ISO 7064: 1983. MOD 1 1-2。 The number 17 of the ID number is used to identify the gender of the owner. Where odd numbers (odd numbers) indicate that the host is male and even numbers (even numbers) indicate that the host is female.

Calculation method of the last digit of ID card number

(1) Multiply the digits of the previous ID number 17 by different coefficients respectively. The coefficients from the first place to the seventeenth place are: 7-9-10-5-8-4-2-1-6-3-7-9-10-5-8-4-2.

(2) Add the multiplication results of this 17 digit and the coefficient.

(3) Divide the added sum by 1 1 and see the result of the remainder.

(4) The remainder can only be 0-1-2-3-4-5-6-7-8-9-10, that is,1. The number of their last ID card is 1-0-X-9-8-7-6-5-4-3-2 (that is, the remainder 0 corresponds to 1, the remainder 1 corresponds to 0, and the remainder 2 corresponds to x ...).

(5) From the above, we know that if the remainder is 3, there will be a 9 in the18th position of the ID card. If the corresponding number is 2, the last digit of the ID card is the Roman numeral X. ..