Prime knot

non-trivial knot which cannot be written as the knot sum of two non-trivial knots

figure-eight knot 7₄ torus knot 7₆ 7₇ Carrick mat Carrick mat (−2,3,7) pretzel knot 6₂ 6₃ 7₁ cinquefoil knot Perko pair stevedore knot three-twist knot Conway knot

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