smallest 4 digit number which is divisible by 10 12 and 18
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10=2×510=2×5
12=22×312=22×3
18=2×3218=2×32
In short 22×32×522×32×5
Obviously, it will end with 0.
So 1000, 1010, 1020 are the numbers.
Secondly, sum of digits should be 9.
Our first attempt is 1080 - it’s divisible by 4 !
Ans : 1080
12=22×312=22×3
18=2×3218=2×32
In short 22×32×522×32×5
Obviously, it will end with 0.
So 1000, 1010, 1020 are the numbers.
Secondly, sum of digits should be 9.
Our first attempt is 1080 - it’s divisible by 4 !
Ans : 1080
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0
1080 is the smallest 4 digit number which is divisible by 10, 12 and 18.
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