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+//chapter 2 Ex 20
+clc;
+clear;
+close;
+n1=5; n2=6; n3=7; n4=8; rem=3;
+n=lcm(int32([n1,n2,n3,n4]));
+k=2;
+num=n*k+rem; //the number is in the form of (quotient*dividend+remainder)
+mprintf("The least such number is %d",num);