<Dd> Women have been assigned even individual numbers, men are assigned odd individual numbers . </Dd> <Ul> <Li> The first check digit is calculated through an algorithm involving modulo 11 of weighted sum of the nine first digits . </Li> </Ul> <Li> The first check digit is calculated through an algorithm involving modulo 11 of weighted sum of the nine first digits . </Li> <Dl> <Dd> The second check digit is calculated through a similar algorithm involving the 10 first digits . </Dd> </Dl>

What letters have your national insurance number on