Factors and Primes Problem Solving :/ Watch
"n is a number. 100 is the LCM of 20 and n. Work out the two different possible values for n"
Does anyone know how to find the answer?
For example, 2 is a factor of 100 but lcm(2, 20)=20 so n cannot be 2.
5 is a factor of 100 but lcm(5, 20)=20 so n cannot be 5.
I'm not sure i've been able to make it as clear as I wanted to here.