Question

The LCM of two numbers is 12. If both numbers are co-prime, find the numbers? a) 2 and 12 b) 3 and 4 c) 4 and 12 d) 6 and 12

Answer 1

Answer:

The two numbers which have only 1 as their common factor are called co-primes.

For example, Factors of 5 are 1,5

Factors of 3 are 1,3

Common factors is 1.

So they are co-prime numbers.

To find their LCM, we

then choose each prime number with the greatest power and multiply them to get the LCM.

=>LCM=3×5=15

Hence, LCM of two co-prime numbers is their product.

Answer 2

Answer:

Co -prime no. are the numbers that have only one is highest common factor (HCF).

Step-by-step explanation:

so the answer is 3and 4

3*2*2=12 are factors of 3and4.