42
Only 1 can go into 7 and 6 without a remainder.
The LCM of 9, 7 and 6 is 126
1. As 7 is a prime number.
210
not one number goes into 6 and 7 unless it is 1. the numbers 1, 2, 3, and 6 go into 6. only 1 goes into 7 because 7 is a prime number
7 and 5 are prime numbers, but 3*2=6
42
It is: 210
6
Just 1.
168