1. 1 2 5 and 10 are the common factors of____.
a.20 and 25
b.20and30
c.25and30
d.15and25
2. 124 is divisible by____.
a.2
b.5
c.6
d.10
3. which of the following numbers is divisible by 3?
a.124
b.342
c.347
d.671
4. what is the common factor of 12 and 9?
a.1,3
b.1,6
c.1,9
d.1,12
5. all of the following are factors of 108 EXCEPT____
a.3.
b.6
c.8
d.9​