Talen 3939 till 3945 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3939 | = | MMMCMXXXIX | = | 1000 + 1000 + 1000 + 1000 − 100 + 10 + 10 + 10 + 10 − 1 |
| 3940 | = | MMMCMXL | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 |
| 3941 | = | MMMCMXLI | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 + 1 |
| 3942 | = | MMMCMXLII | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 + 1 + 1 |
| 3943 | = | MMMCMXLIII | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 + 1 + 1 + 1 |
| 3944 | = | MMMCMXLIV | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 + 5 − 1 |
| 3945 | = | MMMCMXLV | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 − 10 + 5 |