The Monster group M is the largest sporadic simple group. Its order is divisible by exactly 15 primes. Every one of them is reachable from {2, 3, 5, 7, 11} in at most two applications of the Cunningham map c(n) = 2n + 1.
Cunningham Generation
Starting from {2, 3, 5, 7, 11} and their smooth products, all 15 Monster primes emerge in three generations:
Gen
Prime
Seed
How
0
2, 3, 5, 7, 11
base primes
Given
1
13
c(6) = 2*6+1
6 = 2*3
1
17
c(8) = 2*8+1
8 = 2^3
1
19
c(9) = 2*9+1
9 = 3^2
1
23
c(11) = 2*11+1
11 = prime
1
29
c(14) = 2*14+1
14 = 2*7
1
31
c(15) = 2*15+1
15 = 3*5
1
41
c(20) = 2*20+1
20 = 4*5
1
71
c(35) = 2*35+1
35 = 5*7
2
47
c(23) = c(c(11))
2 steps
2
59
c(29) = c(c(14))
2 steps
Monster Cunningham Completeness
All 15 Monster primes are reachable from {2, 3, 5, 7, 11} via at most 2 Cunningham steps c(n) = 2n+1, where seeds are products of {2, 3, 5, 7, 11}. GAP-verified.
The 196883 Trinity
The Monster's smallest faithful representation has dimension 196883. This number factors into exactly three primes -- the three OUTERMOST Monster primes:
196883
47 * 59 * 71
Three outermost Monster primes.
CRT(196883)
(3, 8, 8, 1, 5, 11)
mod 8/9/25/49/11/13 decomposition.
47
c(c(11)) = c(23)
Two Cunningham steps from 11.
59
c(c(14)) = c(29)
Two Cunningham steps from 14 = 2*7.
71
c(35)
One Cunningham step from 35 = 5*7.
Primitive Root Theorem
47 is a primitive root mod both 59 and 71. ord(59 mod 47) = ord(71 mod 47) = 23. The inter-orders encode the Cunningham parent c(11) = 23.
All 15 reachable from 5 base primes via Cunningham c(n) = 2n+1.
Exponent smoothness
Individual exponents not analyzed structurally
All 7 are 7-smooth. Conway excess sum = 48 = phi(210).
Mathieu exponents
Five Mathieu groups, no structural pattern noted
Omega staircase {8,11,12,13,17}. Sum = 61. Range = 9.
Explore: Cunningham Distance
Enter a prime. See how many Cunningham steps c(n) = 2n+1 separate it from {2, 3, 5, 7, 11}. All 15 Monster primes need at most 2 steps. Try 47, 71, 41, 23.