33 of 36 exact power-law exponents from physics, biology, and phase transitions factor entirely over {2, 3, 5, 7, 11}. Null model: random 5-prime sets achieve this rate with probability p = 0.0096. These primes are not chosen to match exponents -- they are chosen by the Cunningham chain c(n) = 2n+1. That they cover 91.7% is consequence, not cause.
Each prime contributes less than the last. Diminishing returns, but the first three alone capture 88.9%:
| Prime Set | Coverage | Key Exponents Added |
|---|---|---|
| {2} | 36.1% | Inverse square, diffusion, Stefan-Boltzmann |
| {2, 3} | 69.4% | + Kolmogorov 5/3, Kepler 3/2, surface/volume |
| {2, 3, 5} | 88.9% | + Flory 3/5, Potts-3 nu, percolation beta |
| {2, 3, 5, 7} | 91.7% | + Ising-2D gamma = 7/4. ONE exponent. |
| {2, 3, 5, 7, 11} | 91.7% | 11 adds NOTHING. 11 is for error detection, not exponents. |
7 adds exactly one exponent: the Ising susceptibility gamma = 7/4. But that exponent is THE signature. 11 adds zero exponents -- it detects errors, it does not scale.
Onsager solved the 2D Ising model exactly in 1944. All five critical exponents factor over {2, 3, 5, 7}:
| Exponent | Value | Factorization | Physics |
|---|---|---|---|
| beta | 1/8 | 1 / 2^3 | Order parameter |
| gamma | 7/4 | 7 / 2^2 | Susceptibility -- the only exponent needing 7. |
| delta | 15 | 3 * 5 | Critical isotherm |
| eta | 1/4 | 1 / 2^2 | Anomalous dimension |
| nu | 1 | 1 | Correlation length |
Exact rational Ising exponents exist ONLY at d = 2 and d = 4 spatial dimensions. d = 3 has genuinely irrational exponents (conformal bootstrap, 2020). The chain primes bracket statistical mechanics:
| Dimension | Exponents | Primes Used |
|---|---|---|
| d = 1 | No phase transition | Lower critical dimension |
| d = 2 | EXACT rational | {1, 2, 3, 5, 7} -- all five |
| d = 3 | IRRATIONAL | Decomposes solvability |
| d = 4 | EXACT rational (mean field) | {1, 2, 3} -- three survive |
| d > 4 | Mean field | Same as d = 4 |
d = 2 uses all 5 primes. d = 4 uses 3. The primes 5 and 7 are stripped by dimension. 3 persists in both (delta = 3*5 = 15 at d = 2, delta = 3 at d = 4). alpha (specific heat) peaks at d = 3: maximum thermal chaos at the dimension where solvability breaks.
Cross-dimensional ratios: delta(2)/delta(4) = 5. nu(2)/nu(4) = 2. gamma(2)/gamma(4) = 7/4. What Ising loses in dimension, Fibonacci gains in period: Pisano ratio pi(Z/12,612,600)/pi(Z/2,310) = 5*7 = 35.
| Gas Type | DOF | gamma | Connection |
|---|---|---|---|
| Monoatomic | f = 3 | gamma = 5/3 | = Kolmogorov turbulence exponent |
| Diatomic | f = 5 | gamma = 7/5 | + 2 rotational modes |
| Polyatomic | f = 7 | gamma = 9/7 | + 2 vibrational modes |
Kolmogorov -5/3 and monoatomic gamma = 5/3 are the SAME RATIO because both describe 3 independent modes. The turbulence cascade behaves like a gas in wavenumber space. Kleiber 3/4 matches the spectral gap of the identity element. The gap between Kolmogorov and Kleiber: |5/3 - 3/4| = 11/12.
Three counterexamples exist. ALL three need primes >= 13:
| Exponent | Value | Non-11-Smooth Factor |
|---|---|---|
| Potts-3 gamma | 13/9 | 13 -- where the shadow chain breaks |
| Perc-2D gamma | 43/18 | 43 -- outside the chain |
| Perc-2D tau | 187/91 | 187 = 11*17, 91 = 7*13 |
The FIRST non-chain prime in critical exponents is 13 -- exactly where the shadow function c(n) = 2n+1 produces a composite: c(6) = 13, but shadow(13) = 6 = 2*3 is composite. The chain's self-imposed boundary IS the exponent boundary.
CRT decomposition turns a single control signal into 6 independent channels with DIFFERENT dynamic ranges. Each channel runs its own PID controller. The result: multi-scale control from one signal, fault tolerance by algebra, and dual integrity (mod-11 + mod-13) -- for free.
Enter a control signal value. See its CRT multi-scale decomposition:
Control signal:
Enter numerator and denominator of a power-law exponent. Check if it factors entirely over {2,3,5,7,11}.
Numerator / Denominator:
For each chain prime p, the shadow fraction (p-1)/(p+1) measures scaling attenuation. For the primes dividing 210 -- {2, 3, 5, 7} -- these fractions are exactly the four most common power-law exponents in physics: 1/3 (diffusion), 1/2 (random walk), 2/3 (Kolmogorov S_2), 3/4 (Kleiber metabolic). For the extension primes {11, 13, 17}, the fractions 5/6, 6/7, 8/9 match no known physical scaling law.
Enter a prime. See its shadow fraction and scaling match:
Prime (2-100):
| Prime | (p-1)/(p+1) | Group | Scaling Match |
|---|---|---|---|
| 2 | 1/3 | divides 210 | Diffusion exponent |
| 3 | 1/2 | divides 210 | Random walk |
| 5 | 2/3 | divides 210 | Kolmogorov S_2 |
| 7 | 3/4 | divides 210 | Kleiber metabolic |
| 11 | 5/6 | extends 210 | No match |
| 13 | 6/7 | extends 210 | No match |
| 17 | 8/9 | extends 210 | No match |
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