Question

find the least no. which is exactly divisible by each of the no. 6,9,15 and 20​

Answer 1

Step-by-step explanation:

ans is 180........... because LCM of 6,9,15,20

Answer 2

Answer:

Least divisible number = LCM of given numbers

So , by prime factorisation method

Prime factors of

6 = 2×3

9 =3×3

15= 3×5

20= 2×2×5

LCM = 2×2×3×3×5 = 180

So 180 is the required number