Number TheoryMediumFermat, Euler and Wilson ShareFermat, Euler and Wilson · Medium problemFor which modulus mmm is 2φ(m)≡1(modm)2^{\varphi(m)} \equiv 1 \pmod m2φ(m)≡1(modm) false?Am=15m = 15m=15Bm=21m = 21m=21Cm=25m = 25m=25Dm=12m = 12m=12Check Show answer Walk through it step by step Practice more like this Review this concept