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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) A number is said to be squarefull if for every prime, p, that divides it, p^{2} also divides it. 196 is such a number. The smallest possible Lychrel number. Note that the iterative process of repeatedly reversing its digits and adding the resulting numbers produces a prime Lychrel number on the first step. [Ray]
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