Happy primes up to 17

Happy primes: Primes that eventually reach 1 under iteration of: x -> sum of squares of digits of x.

There is 2 happy primes smaller than 17.

Checkout happy primes up to: 100, 500, 1000, 10000.

List#

Table#

	1	2
1 - 2	7	13

Learn more about Happy primes.
All happy primes

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