Question

Least 4 digit no divisible by 8 10 n 12

Answer 1

Answer:

L.C.M of 8, 10, 12 = 2 x 2 x 2 x 3 x 5 = 120.

the smallest 4 digit number = 1000

The smallest four digit number that is divisible by 120:

120x8= 960

120 x 10 = 1200

Since 120 is divisible by 8, 10 and 12, 1200 is also divisible by all these numbers.

Therefore, 1200 is the smallest four digit number divisible by 8, 10 and 12.

Answer 2

Answer:

L.C.M of 8, 10, 12 = 2 x 2 x 2 x 3 x 5 = 120.

the smallest 4 digit number = 1000

The smallest four digit number that is divisible by 120:

120x8= 960

120 x 10 = 1200

Since 120 is divisible by 8, 10 and 12, 1200 is also divisible by all these numbers.

Therefore, 1200 is the smallest four digit number divisible by 8, 10 and 12.