Find the least square number which is exactly divisible by 3,4,5
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Answer:
900
Step-by-step explanation:
a number to be divisible by 5 means, its unit digit should be 0 or 5.
a number to be divisible by 4 means, the last two digits are divisible by 4. If there are 00 zeros at the end of the number, then it is also divisible by 4.
the common condition for divisibility by 4 and 5 is, last digits should be 00.
the square numbers which are ending with 00 are 100,900 and so on.
100 is divisible by 4 and 5 but not by 3
900 is divisible by 3,4 and 5.
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