1 and 5.
The lowest whole number that goes into 35, 81, and 15 is one. There is no larger number.
The GCF is 5.
1, 3, 5, 15.
The number 5 is common to both 15 and 100.
The number 3
the number 15.
3
-15
305 = 320 - 15
1, 3, 5, 15.
1, 3, 5 and 15.
1, 3, 5, 15.