Question

Using prime factorisation, find the HCF and LCM of 17, 23, 29.

Answer 1

17 = 17

23 = 23

29 = 29

HCF = product of smallest power of each common prime factor in the numbers = 1

LCM = product of greatest power of each prime factor involved in the numbers

= 17 × 23 × 29

= 11339