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Old 2021-02-25, 22:29   #1197
sweety439
 
Nov 2016

2,819 Posts
Default Riesel base 169

Code:
1,(full algebra factors)
2,1
3,2
4,(full algebra factors)
5,1
6,1
7,1
8,1
9,(full algebra factors)
10,1
11,1
12,1
13,2
14,2
15,1
With CK=16

All k = m^2 for all n; factors to:
(m*13^n - 1) * (m*13^n + 1)

This includes k = 1, 4, 9

Conjecture proven
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