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009a12ee8b
Improve the divisible check by checking if the first digit of the number is smaller than or equal to the last digit |
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README.md
Problem 168: Number Rotations
Consider the number 142857. We can right-rotate this number by moving the last digit (7) to the front of it, giving us 714285. It can be verified that 714285=5×142857. This demonstrates an unusual property of 142857: it is a divisor of its right-rotation.
Find the last 5 digits of the sum of all integers n, 10 < n < 10100, that have this property.