I got 3-ethyl-1-methyl-6-propylcyclohexa-1,2,3-triene.
I first looked at the numbering patterns:
1. Starting at ethyl and going counter clock wise: 1, 4, 5.
2. Starting at methyl and going CCW: 1, 3, 6
3. Starting at propyl and going CW: 1, 4, 6
1,3,6 is the lowest numbering pattern because 3 is lower than 4.
I put the groups in alphabetic order and then assigned the lowest numbers to the double bonds. Since there’s more than 1, I didn’t drop the -a in hexa-.