## anonymous 5 years ago what is "!" ?

1. Owlfred

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

2. anonymous

an exclamation point. is this an english/grammer question?

3. anonymous

factorial. $5!=5\times 4\times 3\times 2 \times 1$