In a simple and agreed way, let's make sure that the divisor is naturally a determinable dividend, which means that because of the mathematical concept, the remainder must be less than the divisor, so the theme of the first three books must be behind the remainder, so obviously the smallest proportion is 5, 8, 6, 6, 9, 7 and 9. These three divisors are determined as follows. Dividend equals divisor+remainder times the simple quotient of conjunction.