 However, unlike other common divisors, the greatest common divisor is a member of the set; by Bézout's identity, choosing "u" = "s" and "v" = "t" gives "g".A smaller common divisor cannot be a member of the set, since every member of the set must be divisible by "g".Conversely, any multiple "m" of "g" can be obtained by choosing "u" = "ms" and "v" = "mt", where "s" and "t" are the integers of Bézout's identity.