(number theory) Any number of the form k·2ⁿ + 1, where k is odd, n is a positive integer, and 2ⁿ > k.

plural of magic number

(mathematics) A non-negative integer, the representation of whose square in its base can be split into two parts that add up to itself (such as 297, whose square, 88209, can be split into 88 and 209, totalling 297).

plural of 0800 number

plural of phone number

plural of imaginary number

plural of hypercomplex number

plural of round number

plural of abundant number

plural of random number