Anton Heinrich Springer?
(-2, 4)
26
2048
-6
42
No.
273 13+8 = 21 and 13*21 = 273
89
144 9+7 = 16 and 9*16 = 144
6-4-8-2=20 is the answer
4+1=5. Plus 4 equals 9. Plus 77685769844446473 equals 77685769844446482. Plus 3 equals 77685769844446485. Plus 8 equals 77685769844446493. Plus 1 equals 77685769844446494. Plus 9870998342523322424 equals 1064785604097768918. Plus 4 equals 1064785604097768922.