Electronic computer for the static recognition of the divisibility, and the division of, numbers divisible by three, six and nine

摘要

An electronic computer for the static recognition of the divisibility, and the division, of numbers which are divisible by the integers 3, 6 and 9, comprising a first adder, for summing the digits of the dividend; a first comparator, for determining the divisibility of the sum of the digits of the dividend by the integers 3, 6 and 9; a second adder, for determining an integer n from the carrys of the sum of the digits of the dividend, and the dividend; a third adder, for determining the quotient of the dividend divided by the integer 9; a multiplier for tripling the integer n determined by the second adder; a fourth adder, for determining the quotient of the dividend divided by the integer 3; a second comparator, for determining the divisibility of the dividend by 6; and a divider, for determining the quotient of the dividend divided by the integer 6.