Question

A 4 digit house number divisible by 7 and 18

Answer 1

Answer:

Since the house number is divisible by both 18 and 7 , so it must be divisible by 18*7= 126 as 126 is the lcm of 18 and 7. Lowest multiple of 126 with 4 digits i.e. 126 * 8 = 1008. So his house number must be 1008.

Answer 2

Answer:

Step-by-step explanation:

Since the house number is divisible by both 18 and 7 , so it must be divisible by 18*7= 126 as 126 is the lcm of 18 and 7. Lowest multiple of 126 with 4 digits i.e. 126 * 8 = 1008. So his house number must be 1008.