3EDF, if the attempt is made to use it as an actual scale, would divide the just perfect fifth into three equal parts, each of size 233.985 cents, which is to say (3/2)^(1/3) as a frequency ratio. It corresponds to 5.1285 edo. If we want to consider it to be a temperament, it tempers out 16/15, 21/20, 28/27, 81/80, and 256/243 as well as 5edo.

Factoids about 3EDF

3EDF is related to the gamelismic temperaments, which temper out 1029/1024 in the 7-limit.

Intervals

ed31\54 ed121/81 (~ed11\19) ed3/2 Pyrite ed122/81 (~ed13\22) ed34\57
(~ed17\29) (~ed10\17)
1 229.63 231.605 233.985 234.545 235.285 236.355 238.597
2 259.259 463.211 467.97 469.091 470.57 472.71 477.193
3 688.888 694.816 701.995 703.636 705.8885 709.065 715.7895
4 918.5185 926.421 935.94 938.181 941.141 945.42 954.386
5 1148.148 1158.0265 1169.925 1172.727 1176.426 1181.775 1192.9825
6 1377.778 1389.632 1403.91 1407.272 1411.711 1418.13 1431.579