It goes on forever by adding 1 or any other numbr plu there is no certain number to where it stops
19x2=38
yes. 1,000,000,000,000.
many, as the numbr of sides it has
Yes.
It is composite.
119
Nope. Comp.
1, 2, 19, 38.
19 ! It goes twice into 38, and three times into 57.
The HCF of 38 and 40 is 2
' 1 ' is the only number that goes into both 38 and 5 .