Prime Numbers: 2, 5, 7, 13, 17, 23, 31, 43, Composite Numbers: 6, 18, 15, 21, 27, 32, 45, 48, Composite and Square Numbers: 4, 9, 16, 25, 49, 64, 81, Composite, Square and Triangular Number (There is only 1): 36,

Prime, Composite, Square and Triangular Numbers

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