20201017, 23:52  #12 
"Rashid Naimi"
Oct 2015
Remote to Here/There
2^{6}×31 Posts 

20201018, 03:08  #13 
Mar 2019
2^{4}·3^{2} Posts 

20201018, 03:22  #14 
"Rashid Naimi"
Oct 2015
Remote to Here/There
2^{6}×31 Posts 
I'm sure it does. I never hid the fact that I am no mathematician.
Thank you for the correction. I will try to remember the notation. Last fiddled with by a1call on 20201018 at 03:23 
20201018, 09:23  #15  
"Viliam FurÃk"
Jul 2018
Martin, Slovakia
101111010_{2} Posts 
Quote:
If the cofactor is tested composite by PRP test, the cofactor is certainly composite. If you refer to this page, then yes, it may be kind of confusing to see PRP cofactor written there, but that's really only a title. If it would be PRP, for real, it would have had written "PRP_PRP_PRP_PRP_" in place of residue. 

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