1, 2,4, 17, 34,68 are all factors of 68. In primary school mathematics, two positive integers are multiplied, so both numbers are called factors of product.

If a*b=c(a, B and C are integers), then A and B are all 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. Conversely, we call C a multiple of A and B. When learning factors and multiples, primary school mathematics does not consider 0.

Extended data

Commonly used in 100:

1 and multiples of 13: 13, 26, 39, 42, 65, 78, 9 1, 104.

2. Multiples of 17:17, 34,51,68,85, 102.

3. Multiples of 19:19, 38, 57, 76, 95.

Multiples of 4 and 23: 23, 46, 69 and 92.

Multiples of 5 and 29: 29,58,87, 1 16.

Multiples of 6.3 1: 3 1, 62,93.

Multiples of 7 and 37: 37,74, 1 1 1.