Some common factors of 22 and 44:
A factor is a number that, when multiplied, equals another specific number! Your specific numbers here are 22 and 44 so the common factors are:
11 and 22
(11*2=22, 11*4=44, 22*1=22, 22*2=44)
The GCF (Greatest Common Factor) =22
As far as regular factors, you can count 11 as one.