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Is 31 A Happy Number? [Solved]
The first few happy numbers are 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, (OEIS A007770).
Happy Numbers - by Stephanie (Gr 11 Student) inspired by Numberphile
“Don’t they teach recreational mathematics anymore?” - Dr. Who
7 and Happy Numbers - Numberphile
7 is an example of a
145 and the Melancoil - Numberphile
… Our earlier
