Only common is one only
Factors.
the factors of 22 are --- 1 and 22... 2 and 11 the factors of 8 are --- 1and 8... 2 and 4 the common factors are 2
1 1 and 3
15 and 30 have those factors.
Yes
16
a prime number
1and 1 4
1 4/5 = 1.8.
4
The Least Common Multiple (LCM) for 1 4 is 4.
125