View Single Post
Old 2020-10-07, 17:47   #3
ATH
Einyen
 
ATH's Avatar
 
Dec 2003
Denmark

11·271 Posts
Default

Quote:
Originally Posted by axn View Post
which can be simplified to q mod 8 = 1 or 7
No, the 16 values (mod 120) are more restrictive.

+/- 1 (mod 8) would give 30 values (mod 120):
1 7 9 15 17 23 25 31 33 39 41 47 49 55 57 63 65 71 73 79 81 87 89 95 97 103 105 111 113 119

Last fiddled with by ATH on 2020-10-07 at 17:47
ATH is offline   Reply With Quote