Because 20 is a multiple of 10.
13
20 is.
Any multiple of 20.
20
It depends on the number it is compared to. 20 is a multiple of 10. 20 is a factor of 40. 20 is both a factor and a multiple of itself. 20 is neither a multiple nor a factor of 27.
The Least Common Multiple (LCM) of 10 and 20 is 20. Since 20 is a multiple of 10, it is automatically the LCM of the set.20 is.
Every multiple of 80 is. There are an infinite number of them.
Every multiple of 60 is.
A common multiple of 14 and 20 is 140. As a matter of fact, it is the least common multiple.
To be a multiple of 4, 10 and 20 the number must be a multiple of their lowest common multiple. lcm(4, 10, 20) = 20 What is required is a multiple of 20 between 61 and 107. The numbers 80 and 100 both satisfy the problem of being between 61 and 107 and being a multiple of 4, 10 and 20.
13 has a multiple of 26