Question

12. If the product of two co-prime number is 783.then find the L.C.M of these numbers. a) 1 b) 783 c) lcm will be equal to hcf d) lcm can’t be calculated

Answer 1

Solution:-
HCF of co-prime number is 1.
So,
$lcm = \frac{783}{1} = 783$

Answer 2

Answer: option (b)

Step-by-step explanation:

let the number is a and b.

as given these numbers are co-prime.

so there H.C.F. is 1.

as we know

product of two numbers = L.C.M. of numbers * H.C.F. of numbers

⇒783 = L.C.M. of numbers * 1

⇒L.C.M. of numbers = 783

so option (b) is correct.