In Mathematics
369 is the magic constant of the 9 × 9 magic square and the n-Queens Problem for n = 9.
There are 369 free octominoes (polyominoes of order 8).
Read more about this topic: 369 (number)
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“It is a monstrous thing to force a child to learn Latin or Greek or mathematics on the ground that they are an indispensable gymnastic for the mental powers. It would be monstrous even if it were true.”
—George Bernard Shaw (1856–1950)