<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T22"><span class="comment"><font color="firebrick">:: GR_CY_3:22</font></span><br/></a><div class="add"> <a href="gr_cy_3.html#K1" title="GR_CY_3:func.1">Mersenne</a> 11 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 23 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 89</div></div>
