Dr Mahbob Blog » Civil ID Check Digit http://DR-Mahbob.com/blog articles about technology, computers, internet, Jewellery Fri, 20 Aug 2010 19:58:11 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Civil ID Equation for check digit http://DR-Mahbob.com/blog/2008/12/23/civil-id-equation-for-check-digit/ http://DR-Mahbob.com/blog/2008/12/23/civil-id-equation-for-check-digit/#comments Tue, 23 Dec 2008 11:27:49 +0000 Mahbob http://DR-Mahbob.com/blog/2008/12/23/civil-id-equation-for-check-digit/

Civil ID

you can verify if the civil id number is correct or not by the following equation :

11 – Mod(( c1 * 2 ) + ( c2 * 1 ) + ( c3 * 6 ) + ( c4 * 3 ) + ( c5 * 7 ) +
( c6 * 9 ) + ( c7 * 10 ) + ( c8 * 5 ) + ( c9 * 8 ) + ( c10 * 4 ) + ( c11 * 2 )),11) = check digit

update:

one of the guys ask me to explain how the formula is working and I did on rtf format [link]

cid equation explanation

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