what is the smallest no when it diminished by 7 it is divisible by 12 ,16,18,21anf 28
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LCM OF 12,16,18,21,28
FACTOR OF 12=2×2×3
FACTOR OF 16=2×2×2×2
FACTOR OF 18=2×3×3
FACTOR OF 21=3×7
FACTOR OF 28=2×2×7
LCM=2×2×2×2×3×3×7=1008
REQUIRED NUMBER=(LCM OF 12,16,18,21 and 28)+7
1008+7
=1015answer
I think this helps u
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