Anybody know the answer to this rebus???

Question

I am in a option at school which requires me to answer this rebus. 1 3 7 S 3 6 A 2 7 F 6 8 E 5 8 T 9 8 Y 6 5 4

Do you know what it is? Please help!!!! Any websities where I can find the answer?? Thanks so much.

Answer 1

It looks like "Safety in numbers".