Ένας αριθμός Friedman είναι ένας θετικός ακέραιος που μπορεί να γραφεί χρησιμοποιώντας τα δικά του ψηφία, μαζί με τα σύμβολα +, -, x, /, ^, ( ).
| 25 = 52 | 121 = 112 | 125 = 51+2 | 126 = 6 * 21 | 127 = - 1 + 27 | 128 = 28-1 |
| 153 = 3 * 51 | 216 = 62+1 | 289 = (8+9)2 | 343 = (3 + 4)3 | 347 = 73 + 4 | 625 = 56-2 |
| 688 = 8 * 86 | 736 = 7 + 36 | 1022 = 210 - 2 | 1024 = (4 - 2)10 | 1206 = 6 * 201 | 1255 = 5 * 251 |
| 1260 = 6*210 | 1285 = (1+28)*5 | 1296= 6(9-1)/2 | 1395 = 15 * 93 | 1435 = 35 * 41 | 1503 = 3 * 501 |
| 1530 = 3 * 510 | 1792 = 7 * 29-1 | 1827 = 21*87 | 2048 = 84/2+0 | 2187 = (2 + 18)7 | 2349 = 29 * 34 |
| 2500 = 502 + 0 | 2501 = 502 + 1 | 2502 = 2+502 | 2503 = 502 + 3 | 2504 = 502 + 4 | 2505 = 502 + 5 |
| 2506 = 502 + 6 | 2507 = 502 + 7 | 2508 = 502+8 | 2509 = 502 + 9 | 2592 = 25 * 92 | 2737 = (2*7)3-7 |
| 2916 = (1*6*9)2 | 3125 = (3+1*2)5 | 3159 =9*351 | 3281= (38+1)/2 | 3375 = (3+5+7)3 | 3378 = (7+8)3+3 |
| 3685 = (36+8)*5 | 3784 = 8*473 | 3864= 3*(-8+64) | 3972= 3+(9*7)2 | 4088 = 84- 8-0 | 4096 = (4+0*9)6 |
| 4106 = 46 + 10 | 4167 = 46 + 71 | 4536 = 56 * 34 | 4624 = (64+4)2 | 4628 = 682 + 4 | 5120 = 5*210 |
| 5776 = 767-5 | 5832 = (2*5+8)3 | 6144 = 6*44+1 | 6145 = 6*45+1 | 6455 = (64-5)*5 | 6880 = 8*860 |
| 7928 = 892 - 7 | 8092 = 902 - 8 | 8192 = 8 * 29+1 | 9025 = 952 + 0 | 9216 = 1 * 962 | 9261 = 219-6 |
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