Can someone check this? As I have neither the expertise nor the equipment, I shouldn't be querying this, but the fact that the two numbers differ by such a small factor as 53 seems surprising, as do the two 81-digit primes whose first 35 digits are the same. R. On Fri, 30 Jan 2004, y.kohmoto wrote:

I found a record of Unitary AP which has 317 digits.

2 ^ 4 * 3 * 5 ^ 4 * 7 ^ 5 * 11 * 13 * 19 ^ 2 * 23 * 29 * 31 * 97 * 101 * 127 * 137 * 151 * 181 * 191 * 227 * 251 * 313 ^ 2 * 1523 * 17569 * 18119 * 22193 * 42767 * 133157 * 1594471 * 3592427 * 12755767 * 16563721580414291 * 3692133344284919899954037 *1107640003285475969986211099 * 509326829322602570550995760607650943 *756709374175283588981851230229946163884862251*10645931718799413777310016871 8026852747401678766160269617017644971540715800242987

2 ^ 4 * 3 * 5 ^ 4 * 7 ^ 5 * 11 * 13 * 19 ^ 2 * 23 * 29 * 31 * 97 * 101 * 127 * 137 * 151 * 181 * 191 * 227 * 251 * 313 ^ 2 * 1523 * 17569 * 18119 * 22193 * 42767 * 133157 * 1594471 * 3592427 * 12755767 * 16563721580414291 * 3692133344284919899954037 *1107640003285475969986211099 * 509326829322602570550995760607650943 *53* 14013136558801547944108356115369373207909921*1064593171879941377731001687180 26854246807290557925899636611749316063659704331051

Yasutoshi Kohmoto http://boat.zero.ad.jp/~zbi74583/another02.htm