creditcd1
some recent  programs from don.mcdonald@nzpca.org.nz
that I am archiving.
04 389 6820.
02.03.01  06:47

for factorising credit card size integers max 2^52
= 4.26e15.

the one i will be working on some more is c23.

basic64.
method.
if n> 2^32 basic cannot test if
2 divides into n.

Higher numbers can be used accurately.
However the highest integer type is 2^31-1 = 2.1 Billion.

so don's idea is
test highest common factor
hcf(n, primorial 19# =  2*3*5*7*11*13*17*19.)

this tests simultaneously for many factors.

My idea.  I do not know if anyone has used it.
Except me.
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