Question

I am thinking of two prime numbers.

I can tell you their HCF.
I can tell you how to find their LCM.

a How can Sasha do that?
b What will Razi tell Jake?​

Answer 1

Prime numbers only have two factors which is 1 and itself so the HCF of a prime number is itself.

LCM of prime numbers is like the LCM of any other number. See where the lowest multiple of both prime numbers are equal.

Hope this helps.