Which is the smallest number when increased by 5 is divisible by 27 and 21?

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A179

B164

C184

D189

Answer:

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ഏറ്റവും ചെറിയ അഭാജ്യ സംഖ്യ?

A child asked a flock of birds,

How many are you? A bird replied.

We and us again,

With half of us

And half of that

With one more,

Would make hundred

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$4^{61} + 4^{62} + 4^{63} + 4^{64}$ is divisible by