Ans is 162824. Here the logic is.. 532=(5*3)(3*2)(2*5)(5*3+3*2+2*5-middle digit of 532 i.e., 3) So 532=1561028

Same logic is applicable for all So 821=1628(16+2+8-2(middle digit of 821)) Now the ans is 162824

LCM of two numbers is 60 times their HCF. If sum of LCM and HCF is 549. If one number is 45 then what is the other number?