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The first term of an arithmetic sequence is 1, another term of the sequence is 91 and all of the terms of the sequence are integers. What is the smallest possible common difference of the sequence?

 Apr 11, 2022
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The smallest possible difference is \(\color{brown}\boxed{1}\). The series could go: 1, 2, 3, 4, 5, 6, ... 89, 90, 91. 

 Apr 11, 2022

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