Find the least 5-digit numberr which is exactly divisible by 20,25,30.
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LCM of 20.25and 30 is 300.
least number of 5 digits is 10000.
when 300 is divided by 10000 leaves the remainder 100.
So we subtract 100 from 10000=9900.
least number of 5 digits is 10000.
when 300 is divided by 10000 leaves the remainder 100.
So we subtract 100 from 10000=9900.
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