For all you Prime Factor history fans, 9999999967 proves prime in ?

[Gene]

The number 9,999,999,967 is the largest 10 digit prime number. Early PPC history buffs will remember the numerous Prime Factor programs that used this as the longest test case to prove prime on a 10 digit value.

For Jim Horn's Speedy Factor finder program from PPCJ V5N2P22, this test value proved prime in 2 hours 55 min.

Thought I would post the result from the PFCT function in mcode from the SandMath 4x4 rom running at TURBO 50 on my 41CL.

9,999,999,967 proves prime in about 9.95 seconds.

How times have changed. Well done Jim in paving the way. Well done Angel with all your mcode work.