13
Chat with our AI personalities
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.
The number 20 is.
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.
10, 20, 30, 40, 50...
A single number, 20, does not have a lowest common multiple! So there are no two numbers to go in.