Important Math Question

[Dash Lambda]

20 hours ago, Drak3 said:

49. It's the only number where the sum of the digits isn't repeated.

 

16. It's the only even number.

 

63. It's the only number that isn't a perfect square.

 

81. It's the only number where the sum of the digits is equal to its root.

 

25. It's the only number there the root is also a digit.

25 -Is the only number from the set which can be expressed as a sum of two perfect squares.

16 -Is the only number from the set which is smaller than the number listed before it.

49 -Is the only number from the set which is happy.

63 -Is the only number from the set which is not economical.

81 -Is the only number from the set which can be represented as F_nⁿ (F_n is the n^th Fibonacci number).

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Every number is a sex position in the Kama Sutra except 81, the KS only goes up to 64.