Mathematics · Modular Arithmetic
The set of positive values of x satisfying 26 ≡ 5 (mod x), where x > 1, is:
- 1{3, 7, 21}✓
- 2{3, 21}
- 3{1, 3, 7}
- 4{3, 7}
Correct answer
{3, 7, 21}
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