Bài 1:
program uoc_1000;
uses crt;
var m,n,i:integer;
begin
clrscr;
write('Nhap M: '); readln(m);
write('Nhap N: '); readln(n);
for i:=m to n do
if 1000 mod i=0 then write(i,' ');
readln;
end.
Bài 2:
program uoc_chuong_lon_nhat;
uses crt;
var m,n:integer;
begin
clrscr;
write('Nhap m: '); readln(m);
write('Nhap n: '); readln(n);
while m<>n do
if m>n then m:=m-n else n:=n-m;
write('UCLN = ',m);
readln;
end.