Happy numbers are numbers that lead to 1 when you square each individual digit and add them together. For example, 19 is a happy number because 1^2 + 9^2 = 82, and 8^2 + 2^2 = 68, and 6^2 + 8^2 = 100, and 1^2 + 0^2 + 0^2 = 1. #happynumber #mathfun
Happy numbers are numbers that lead to 1 when you square each individual digit and add them together. For example, 19 is a happy number because 1^2 + 9^2 = 82, and 8^2 + 2^2 = 68, and 6^2 + 8^2 = 100, and 1^2 + 0^2 + 0^2 = 1. #happynumber #mathfun
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