Simple parallel circuit problem

[Garth Wilson]

I don't know what you mean by "E24" resistors, but we have:
3 / (15.06K // 183 // 1 // 24) = Pi A

Code:

3
ENTER
15060
1/X
183
1/X
+
24
1/X
+
1
+
1/X    \ Not quite the most efficient,
/      \ but just to show what's done.