.. i was wondering before, why *bin/factor is in games, now i get it. Very nice observation!
Another factor game fake primes: 18446744073709551503 == 2^64 - 113 == 119026343 * 154980348121 18446744073709551499 == 2^64 - 117 == 363269 * 50779846542671 18446744073709551491 == 2^64 - 125 == 315781601 * 58416145891 18446744073709551461 == 2^64 - 155 == 76511 * 241099241595451 ... i like this one: 18446744073709551043 == 2^64 - 573 == 83401 * 95279 * 2321406917 m. > ... is the greatest composite OpenBSD prime. ... > $ /usr/games/factor $n ...