T P A T A i a g ; i g A e A e e s o A Aot~ e, IS T SN T~ o S g 34 SPECIAL TOPICS IN THEORETICAL ARITHMETIC Ex. 2. 137 = 129 4 2-4 120 + — 13.4 + — 3.4 X (— 5) 120 + — 13-4 4+ — 114 X (= 5) +4-4 X (= 5) X 2 93. If in the theorem of § 92 the divisors 7y, 7o, 73, +++ are all equal to 0, the remainders aq, a1, as, --- are respectivly equal to qo, ¢1, @2, - We will now assume that none of the divisors is zero but suppose them all equal. The theorem of § 92 then gives us as a special case the following theorem. 94. Th. If a is an integer, v a positiv or negativ integer, and G, @2, qs, *** any series of integers, if qo = a and ay_,, where k = 1, is the remainder got by dividing qi_, by r using the quo- tient qx, then Il a = Qo k—1 > {alrl} + qur* =0 = a0+ arr + agr? + - + @yl - gt ror, ik =1, k—1 l k 0 l 1 > {azn } Fallt) =% {GZH } ST =0 m=0 m=0 =0 m=0 m=0 0 1 = ao Il () + ¢ II (rn) = aoro + qrors = a0 + qiny m=0 m=0