How good a match do you need? If you REALLY need to know exactly what it is, pen and paper might be your best bet. 16^16 = 18446744073709551616 Square that, and there's your answer. Mike H. On 4/20/06, YAP wrote: > What is 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF (128 bits) in decimal? How go a > head an calculate big numbers like this. > > Regards > /Ake > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist