Question

6. given three numbers 12, 40 and 45, find... a) their HCF b) their LCM c) the greatest 4-digit number which is a common multiple of these numbers. 7. a) find the prime factorisaton of the following numbers in index notation. i) 12 ii) 144 iii)5040 b) the HCF and LCM of two numbers are 12 and 5040 respectively. If one of the numbers is 144, find the other number.

Answer 1

Answer:

i) SIMPLE A) 2

B) 2

C) NO

ii) FOLLOWING BY 2 i and ii