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The Mathematics Channel: Algebra, Geometry, Problems, Puzzles and History of Mathematics.
The Mathematics Channel: Algebra, Geometry, Problems, Puzzles and History of Mathematics.
Mathematics reveals the beauty of numbers: from algebra and geometry to calculus, problems, proofs and logic. Real-world applications, history of mathematics and elegant solutions for students and amateurs.
Answer: 3 (giving 9 + 14 = 23, which is prime) Follow @mathematics for more daily puzzles!
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