> Likewise, if you start with a positive integer that ends in 6 and repeatedly raise it to the fifth power, you converge digit by digit toward the strange number
> b = ···743740081787109376
No you don't. Trying with 6, 16, 26, any number, you don't converge.
> b = ···743740081787109376
No you don't. Trying with 6, 16, 26, any number, you don't converge.