Key in the number theory answer

Exercise and reference answers

Questions

1. Answer

   6

   Question

   What is the HCF of 12 and 18?

2. Answer

   36

   Question

   What is the LCM of 12 and 18?

3. Answer

   3

   Question

   How many prime factors does 12 have, counted with repetition?

4. Answer

   2

   Question

   What is the smallest prime number?

Instructions

Work out each answer and key it in on the pad.

Explanation