The common factors of 6 and 20 are 1 and 2 .
The smallest number that 8 or 12 or 20 will all go in to is 120 120 = 20 x 6 = 12 x 10 = 8 x 15 as there is then no number that goes into 6 and 10 and 15 equally.
The number 5.
2 goes into 6 three times. 2 goes into 20 ten times.
the number that goes into 5,7,8 is the number 6
Two.
1
One.
The number 3 goes into both 6 and 33 (6/3 = 2, 33/3 = 11)
The number is 1.
29 is a prime number. Neither number goes into the other, and neither of them goes into the same number.
Only the number one.