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C9:
Vizing's conjecture
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C17:
Andrica's conjecture
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C19:
Legendre's conjecture
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C4:
Goldbach conjecture
|
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C2:
Riemann hypothesis
|
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C7:
Euclid number conjecture
|
|
C14:
Sendov's conjecture
|
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C15:
Singmaster's conjecture
|
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C5:
Twin prime conjecture
|
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C3:
Collatz conjecture
|
