pnrc = prime number remix chain you must display remix number with only prime numbe (except for R1, because it is 1) exponent also must be prime (like factorization, but also exponent) example: 64: 2^(2x3) 81: 3^(2^2) 6561: 3^(2^3) 384: 2^7x3 768: 2^(2^3)x3 800: 2^5x5^2 16384: 2^(2x7)