Which Statements of congruence are true and which are false and why?

Question

177 _= 17
871 _= 713
1322 _= 5294
5141 _= 8353
13944 _= 8919
67 x 73 _= 1 x 3
17 x 18 x 19 x 20 _= 4!
83 (144 power) _= 15 (144 power)
Their not equals signs...they are three lines on top of one another.