4.3 Greatest Common Divisor,20pcs CD4081BE CD 4081 CMOS Quad 2-Input and Gate 6.8 mA 3V to 18V,14-Pin.,HartlandControls CAP-40/5/440R, HCKS400D050R440999Z, 40+5 MFD 370/440V Round Run Capacitor,HartlandControls CAP-10/440, HCKS100V440999Z, 10 MFD 370/440V Oval Run Capacitor,Greatest Common Divisor (w/ 13 Step-by-Step Examples!),