If the definition you are using considers 1 to be a proper factor (some teachers say yes, some say no) then add the number 1 to this list.
2,3,6,9
The factors of 18 are: 1, 2, 3, 6, 9, 18
Prime numbers don't have proper factors.
The proper factors of 220 are 2,4,5,10,11,20,22,44,55,110
The proper factors of 16 are 1,2,4, and 8 :)
1, 5, 7, and 35 are the factors of 35. The proper factors are 5 and 7.
eighteen has six factors namely, 1,2,3,6,9, and18.
Eighteen Hundreds is the proper way to say it.
18
180
1,2,3,6,9,18
The common factors are: 1, 2
1,2,3 and 6
8: 1,2,4,8 18: 1,2,3,6,9,18
1, 2, 4
1 and 2
The factors of 18 are: 1, 2, 3, 6, 9, 18
factors of 18: 1 2 3 6 9 18