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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Dr. avtar chand
{0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30} {0,3,6,9,12,15,18,21,24,27,30} {0,5,10,15,20,25,30} are prime ideal of Z30