Question

find the least no. exactly divisible by each of the no.s: 20,15,9,6

Answer 1

Answer:

180

Step-by-step explanation:

find lcm of 20,15,9 and 6

Prime factorization of the numbers:

20 = 2 × 2 × 5

15 = 3 × 5

9 = 3 × 3

6 = 2 × 3

LCM(20, 15, 9, 6)

= 2 × 2 × 3 × 3 × 5

= 180

so 180 is the least number exactly divisible by 20,15,9 and 6

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hope it helps:)

Answer 2

Step-by-step explanation:

find lcm of 20,15,9 and 6

Prime factorization of the numbers:

20 = 2 × 2 × 5

15 = 3 × 5

9 = 3 × 3

6 = 2 × 3

LCM(20, 15, 9, 6)

= 2 × 2 × 3 × 3 × 5

= 180

Therefore, 180 is the least number exactly divisible by 20,15,9 and 6