If a*b=c(a, B and C are all integers), then we call A and B factors of C. It should be noted that this relationship only holds when the dividend, divisor and quotient are integers and the remainder is zero. On the contrary, we call c a multiple of a and b, and we don't consider 0 when studying factors and multiples.
For example: 54, the minimum factor is 1, and the maximum factor is 54. The divisible factor of 54 in this range is 54.
In (1) division, if the dividend is divided by the divisor, the quotient obtained is a natural number, and there is no remainder, it is said that the dividend is a multiple of the divisor, and the divisor is a factor of the dividend.
(2) We divide a composite number into several prime numbers, which are called prime factors of this composite number. ?
Extended data:
In primary school mathematics, two positive integers are multiplied, so both numbers are called factors of product, or divisors.
Definition of primary school mathematics: If a*b=c(a, B and C are all integers), then we call A and B factors of C. It should be noted that this relationship only holds if the dividend, divisor and quotient are integers and the remainder is zero. Conversely, we call C a multiple of A and B. When learning factors and multiples, primary school mathematics does not consider 0.
In fact, factors are generally defined as integers: let a be an integer and b be a non-zero integer. If there is an integer Q that makes A=QB, then B is a factor of A, denoted as B | A ... but some authors do not require B≠0.
For example, 2X6= 12, and the product of 2 and 6 is 12, so 2 and 6 are factors of 12. 12 is a multiple of 2 and also a multiple of 6.
3X(-9)=-27, 3 and -9 are all factors of -27. -27 is a multiple of 3 and -9.
Generally speaking, the integer A is multiplied by the integer B to get the integer C. Both the integer A and the integer B are called factors of the integer C. Conversely, the integer C is a multiple of the integer A and also a multiple of the integer B. ..
References:
Baidu encyclopedia-factor