PreparationMock TestRRBOnline RRB NTPC Stage 1 Mock TestBy salma H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 24 * 35 * 52 * 72. The third number is:(A) 22 * 35 * 72(B) 22 * 53 * 72(C) 25 * 52 * 72(D) 23 * 35 * 72