Which of the following are the complete common factors of 16 and 24?
1,2,4 and 8
1,2 and 4
1,2,4,8 and 12
2,4 and 8
What digit is missing in 25,31__ to make it divisible by 8?
8
6
2
4
Which of the following number is NOT a common factor of both 16 and 24?
2
4
6
8