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please how do i store large numbers in c. the number has no be large like 121223824824623423476234762347623423476234234342342332762376 maybe up to 100 digits or more. after storing the number i need to carry out mathematical operations on that number which of course has been stored in a variable. mathematical operations like %(modular), and (pow), because as i understand, pow only operates with double while modular works with only integer variables