His books have been translated into 41 languages and have sold over 45 million copies.
Prva kubna praštevila takšne oblike so :: 13, 109, 193, 433, 769, 1201, 1453, 2029, 3469, 3889, 4801, 10093, 12289, 13873, 18253, 20173, 21169, 22189, 28813, 37633, 43201, 47629, 60493, 63949, 65713, 69313, 73009, 76801, 84673, 106033, 108301, 112909, 115249, ...Tudi to vrsto kubnih števil je raziskal Cunningham v svoji knjigi "Binomske faktorizacije" ("Binomial Factorisations").