Hello

I Am very stumped.

I need to know what this symbol means.

¶?????

here it is in a equation

1 radian = 180 degrees / ¶5 x 1 radian = 5 x 180 degrees / ¶5 radians = 286.5 degrees

does anyoe know the value or meaning or name of this symbol?

If someone could help me that would be great thank you!!