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https://en.wikipedia.org/wiki/24_(number)
24 (number) - Wikipedia
24 is an even composite number, a highly composite number, an abundant number, a practical number, and a congruent number. The many ways 24 can be constructed inspired a children's mathematical game involving the use of any of the four standard operations on four numbers on a card to get 24. 24 is also part of the only nontrivial solution pair to the cannonball problem, [1] and the kissing ...