A 3-White number is a number that you can cube, take the digits in blocks of three, add them, and get the number back. I suppose you can generalize n-White numbers with the nth power and in blocks of n digits. > 45^2; 2025 > 55^2; 3025 > 99^2; 9801 > 297^3; 26198073 > 1296^3; 2176782336 > 14443^4; 43514063882862001 so how does 26198073 give 297 ? NJAS