Seems like a perfectly reasonable naming scheme to me. Anyone foolish enough to think that the variables are there to hold the values 3, 5 and 7 is probably was

Seems like a perfectly reasonable naming scheme to me. Anyone foolish enough to think that the variables are there to hold the values 3, 5 and 7 is probably wasting their time on the code in the first place. Besides, it made you read the code and the comments.