Math, asked by babu816, 8 months ago

Find the least square number exactly divisible by 8, 12, 15 and 20.​

Answers

Answered by ankitraj6651
3

Answer:

Hopr you will understand

Attachments:
Answered by shockman1010
1

Answer:

3600

Step-by-step explanation:

prime factors:

8 = 2 x 2 x 2

12 = 2 x 2 x 3

15 = 3 x 5

20 = 2 x 2 x 5

combine common factors to find LCM (Least Common Multiple):

2 x 2 x 2 x 3 x 5 = 120

*120 is not a square number because every prime factor needs a pair

*we need another 2, 3, and 5 to complete the pairs

multiply by 2, 3, and 5:

(2 x 2) x (2 x 2) x (3 x 3) x (5 x 5) = 3,600

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