"johnps11" == johnps11 johnps11@bigpond.com writes:
johnps11> I'm not clever enough to understand PRNGs, so I'll leave it others johnps11> to work out what the answer is, although I suspect that for more johnps11> than 56 bits you need a PRNG that uses LargeIntegers and not Floats.
Yes. There are only 56 bits in an IEEE Float. You can't get any more random bits from that.