The Corner

Derb’s Brainteaser

Augustus De Morgan was born in 1806, and so was 43 years old in 1849, which is the square of

43.

If you were born in 1980, you will be 45 in 2025, which is the square of 45.

And should you have any grandchildren born in 2046, they will be 2 years old

in 2048, which is the eleventh power of 2.

That’s it for this century. In the next, though, there is the possibility

of a double-header. Anyone born in 2184 will be (a) 3 years old in 2187,

which is the seventh power of 3, and also (b) 13 years old in 2197, which is

the cube of 13.

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