You're *very* close with this one. Remember that r is input as a double, not a string.
Project Euler: Problem 6, Natural numbers, squares and sums.
letter yes yes & letter no no
Area of an equilateral triangle
5 Prime Numbers
Numbers on 7-segment
I've got the power! (Inspired by Project Euler problem 29)
Crunch that matrix!
Pseudo Square Root (Inspired by Project Euler 266)
Unique dice configurations
Iccanobif numbers 1
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