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Number Theory and Pattern Puzzles Quiz
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1, 4, 9, 16, 23, 25, 36
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A
23
💡 Explanation:
The sequence contains perfect squares: 1 (1²), 4 (2²), 9 (3²), 16 (4²), 25 (5²), and 36 (6²). The number 23 is the only non-square number, making it the clear outlier in this pattern of square numbers.