280edo

280edo uses a step size of 4.2857142857143 cents, and is a commatonal and nanotonal EDO. It can be thought of as fourteen sets of 20edo, or as 70edo with a four times smaller step size. Divisors are {{#rreplace: 280 140 70 56 40 35 28 20 14 10 8 7 4 5 2 1|/(\d+)(\D+)?/|\1\2}}. It is consistent and uniquely consistent in the 7-odd-limit. It is contorted in 5-limit and 7-limit.

Step	Five limit	Seven limit	Eleven limit	Thirteen limit
1	?	?	385/384	352/351
2	32805/32768	225/224	225/224	169/168
3	?	?	100/99	100/99
4	2048/2025	126/125	121/120	91/90
5	?	?	99/98	78/77
6	81/80	64/63	64/63	64/63
7	?	?	55/54	55/54
8	?	49/48	49/48	49/48
9	?	?	45/44	45/44
10	128/125	128/125	128/125	40/39
11	?	?	77/75	77/75
12	6561/6400	36/35	36/35	36/35
13	?	?	33/32	33/32
14	20480/19683	28/27	28/27	28/27
15	?	?	80/77	80/77
16	25/24	25/24	25/24	25/24
17	?	?	704/675	176/169
18	?	256/245	256/245	117/112
19	?	?	22/21	22/21
20	256/243	21/20	21/20	21/20
21	?	?	81/77	81/77
22	135/128	135/128	128/121	96/91
23	?	?	35/33	35/33
24	?	625/588	363/343	52/49
25	?	?	297/280	117/110
26	16/15	16/15	16/15	16/15
27	?	?	77/72	77/72
28	2187/2048	15/14	15/14	15/14
29	?	?	189/176	189/176
30	32768/30375	175/162	175/162	14/13
31	?	?	250/231	250/231
32	27/25	27/25	27/25	13/12
33	?	?	88/81	88/81
34	?	49/45	49/45	49/45
35	?	?	12/11	12/11
36	800/729	35/32	35/32	35/32
37	?	?	675/616	169/154
38	1125/1024	192/175	192/175	100/91
39	?	?	11/10	11/10
40	65536/59049	54/49	54/49	54/49
41	?	?	243/220	195/176
42	10/9	10/9	10/9	10/9
43	?	?	49/44	49/44
44	18225/16384	125/112	125/112	39/35
45	?	?	352/315	143/128
46	4096/3645	28/25	28/25	28/25
47	?	?	55/49	55/49
48	9/8	9/8	9/8	9/8
49	?	?	112/99	44/39
50	?	245/216	245/216	147/130
51	?	?	25/22	25/22
52	256/225	256/225	256/225	91/80
53	?	?	154/135	154/135
54	729/640	8/7	8/7	8/7
55	?	?	55/48	55/48
56	?	147/128	147/128	147/128
57	?	?	343/297	343/297
58	125/108	125/108	121/105	15/13
59	?	?	231/200	231/200
60	59049/51200	81/70	81/70	65/56
61	?	?	64/55	64/55
62	2560/2187	7/6	7/6	7/6
63	?	?	90/77	90/77
64	75/64	75/64	75/64	75/64
65	?	?	88/75	88/75
66	?	147/125	147/125	147/125
67	?	?	33/28	13/11
68	32/27	32/27	32/27	32/27
69	?	?	196/165	77/65
70	1215/1024	25/21	25/21	25/21
71	?	?	105/88	105/88
72	65536/54675	448/375	448/375	117/98
73	?	?	176/147	176/147
74	6/5	6/5	6/5	6/5
75	?	?	77/64	77/64
76	19683/16384	98/81	98/81	98/81
77	?	?	40/33	40/33
78	4096/3375	175/144	121/100	63/52
79	?	?	297/245	297/245
80	243/200	128/105	128/105	39/32
81	?	?	11/9	11/9
82	?	49/40	49/40	49/40
83	?	?	27/22	27/22
84	100/81	100/81	100/81	16/13
85	?	?	154/125	154/125
86	10125/8192	216/175	121/98	26/21
87	?	?	99/80	99/80
88	8192/6561	56/45	56/45	56/45
89	?	?	96/77	96/77
90	5/4	5/4	5/4	5/4
91	?	?	441/352	429/343
92	?	784/625	784/625	49/39
93	?	?	44/35	44/35
94	512/405	63/50	63/50	63/50
95	?	?	308/243	195/154
96	81/64	80/63	80/63	80/63
97	?	?	14/11	14/11
98	?	125/98	125/98	125/98
99	?	?	225/176	143/112
100	32/25	32/25	32/25	32/25
101	?	?	77/60	77/60
102	6561/5120	9/7	9/7	9/7
103	?	?	128/99	128/99
104	25600/19683	35/27	35/27	35/27
105	?	?	100/77	100/77
106	125/96	125/96	125/96	13/10
107	?	?	176/135	176/135
108	?	64/49	64/49	64/49
109	?	?	55/42	55/42
110	320/243	21/16	21/16	21/16
111	?	?	392/297	154/117
112	675/512	250/189	160/121	120/91
113	?	?	33/25	33/25
114	?	324/245	324/245	65/49
115	?	?	297/224	117/88
116	4/3	4/3	4/3	4/3
117	?	?	147/110	147/110
118	10935/8192	75/56	75/56	75/56
119	?	?	400/297	192/143
120	8192/6075	168/125	121/90	35/26
121	?	?	66/49	66/49
122	27/20	27/20	27/20	27/20
123	?	?	110/81	88/65
124	?	49/36	49/36	49/36
125	?	?	15/11	15/11
126	512/375	175/128	175/128	160/117
127	?	?	308/225	196/143
128	2187/1600	48/35	48/35	48/35
129	?	?	11/8	11/8
130	81920/59049	112/81	112/81	112/81
131	?	?	243/176	243/176
132	25/18	25/18	25/18	18/13
133	?	?	245/176	245/176
134	91125/65536	243/175	243/175	39/28
135	?	?	88/63	88/63
136	1024/729	7/5	7/5	7/5
137	?	?	108/77	108/77
138	45/32	45/32	45/32	45/32
139	?	?	140/99	55/39
140	?	625/441	343/242	147/104
141	?	?	99/70	78/55
142	64/45	64/45	64/45	64/45
143	?	?	77/54	77/54
144	729/512	10/7	10/7	10/7
145	?	?	63/44	63/44
146	?	350/243	350/243	56/39
147	?	?	352/245	352/245
148	36/25	36/25	36/25	13/9
149	?	?	231/160	231/160
150	59049/40960	81/56	81/56	81/56
151	?	?	16/11	16/11
152	3200/2187	35/24	35/24	35/24
153	?	?	225/154	143/98
154	375/256	256/175	256/175	117/80
155	?	?	22/15	22/15
156	?	72/49	72/49	72/49
157	?	?	81/55	65/44
158	40/27	40/27	40/27	40/27
159	?	?	49/33	49/33
160	6075/4096	125/84	125/84	52/35
161	?	?	297/200	143/96
162	16384/10935	112/75	112/75	112/75
163	?	?	220/147	220/147
164	3/2	3/2	3/2	3/2
165	?	?	385/256	176/117
166	98415/65536	245/162	245/162	98/65
167	?	?	50/33	50/33
168	1024/675	189/125	121/80	91/60
169	?	?	297/196	117/77
170	243/160	32/21	32/21	32/21
171	?	?	55/36	55/36
172	?	49/32	49/32	49/32
173	?	?	135/88	135/88
174	125/81	125/81	125/81	20/13
175	?	?	77/50	77/50
176	19683/12800	54/35	54/35	54/35
177	?	?	99/64	99/64
178	10240/6561	14/9	14/9	14/9
179	?	?	120/77	120/77
180	25/16	25/16	25/16	25/16
181	?	?	352/225	224/143
182	?	196/125	196/125	196/125
183	?	?	11/7	11/7
184	128/81	63/40	63/40	63/40
185	?	?	243/154	243/154
186	405/256	100/63	100/63	100/63
187	?	?	35/22	35/22
188	?	625/392	625/392	78/49
189	?	?	704/441	351/220
190	8/5	8/5	8/5	8/5
191	?	?	77/48	77/48
192	6561/4096	45/28	45/28	45/28
193	?	?	160/99	160/99
194	16384/10125	175/108	121/75	21/13
195	?	?	125/77	125/77
196	81/50	81/50	81/50	13/8
197	?	?	44/27	44/27
198	?	49/30	49/30	49/30
199	?	?	18/11	18/11
200	400/243	105/64	105/64	64/39
201	?	?	490/297	385/234
202	3375/2048	288/175	200/121	104/63
203	?	?	33/20	33/20
204	32768/19683	81/49	81/49	81/49
205	?	?	128/77	128/77
206	5/3	5/3	5/3	5/3
207	?	?	147/88	147/88
208	54675/32768	375/224	375/224	117/70
209	?	?	176/105	176/105
210	2048/1215	42/25	42/25	42/25
211	?	?	165/98	130/77
212	27/16	27/16	27/16	27/16
213	?	?	56/33	22/13
214	?	245/144	245/144	245/144
215	?	?	75/44	75/44
216	128/75	128/75	128/75	128/75
217	?	?	77/45	77/45
218	2187/1280	12/7	12/7	12/7
219	?	?	55/32	55/32
220	?	140/81	140/81	112/65
221	?	?	343/198	343/198
222	125/72	125/72	121/70	26/15
223	?	?	594/343	594/343
224	?	243/140	243/140	195/112
225	?	?	96/55	96/55
226	1280/729	7/4	7/4	7/4
227	?	?	135/77	135/77
228	225/128	225/128	225/128	160/91
229	?	?	44/25	44/25
230	?	432/245	432/245	260/147
231	?	?	99/56	39/22
232	16/9	16/9	16/9	16/9
233	?	?	98/55	98/55
234	3645/2048	25/14	25/14	25/14
235	?	?	315/176	143/80
236	32768/18225	224/125	224/125	70/39
237	?	?	88/49	88/49
238	9/5	9/5	9/5	9/5
239	?	?	231/128	231/128
240	59049/32768	49/27	49/27	49/27
241	?	?	20/11	20/11
242	2048/1125	175/96	175/96	91/50
243	?	?	891/490	308/169
244	729/400	64/35	64/35	64/35
245	?	?	11/6	11/6
246	?	90/49	90/49	90/49
247	?	?	81/44	81/44
248	50/27	50/27	50/27	24/13
249	?	?	231/125	231/125
250	30375/16384	324/175	225/121	13/7
251	?	?	297/160	297/160
252	4096/2187	28/15	28/15	28/15
253	?	?	144/77	144/77
254	15/8	15/8	15/8	15/8
255	?	?	560/297	220/117
256	?	1176/625	686/363	49/26
257	?	?	66/35	66/35
258	256/135	189/100	121/64	91/48
259	?	?	154/81	154/81
260	243/128	40/21	40/21	40/21
261	?	?	21/11	21/11
262	?	245/128	245/128	224/117
263	?	?	675/352	169/88
264	48/25	48/25	48/25	25/13
265	?	?	77/40	77/40
266	19683/10240	27/14	27/14	27/14
267	?	?	64/33	64/33
268	12800/6561	35/18	35/18	35/18
269	?	?	150/77	150/77
270	125/64	125/64	125/64	39/20
271	?	?	88/45	88/45
272	?	49/25	49/25	49/25
273	?	?	55/28	55/28
274	160/81	63/32	63/32	63/32
275	?	?	196/99	77/39
276	2025/1024	125/63	125/63	125/63
277	?	?	99/50	99/50
278	65536/32805	448/225	448/225	195/98
279	?	?	539/270	351/176
280	2/1	2/1	2/1	2/1