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Problems

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Difficulty
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8917
Degrees of two
Very easy
8918
Complete squares
8919
Perfect cubes
Very easy
8920
Non-Multiples of 2 3 5
Very easy
8921
Digits of the number
8922
Number of digits
Very easy
8923
The number backwards is 3
Very easy
8924
Sum of even digits
Easy
8925
The product of the odd digits of a number
Very easy
8926
Change the parity
Very easy
8927
Smallest divisor
Easy
8928
Greatest divisor
Easy
8929
Prime number
Very easy
8930
Prime Factors
Easy
8931
All OK
8932
Marathon 2
Very easy
8933
Timer
8934
Marathon 3
8935
Odds in the interval
8936
Evens in the interval
8937
Strip
8938
#Rectangle
8939
#Rectangle 2
8940
#Rectangle 3
8941
Matrix
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  • 361