Implement math.factorial(n) to calculate very large factorials with speed
#6553
| Job | Run time |
|---|---|
| 4m 48s | |
| 3m 41s | |
| 3m 51s | |
| 6m 38s | |
| 4m 0s | |
| 8m 46s | |
| 3m 33s | |
| 3m 53s | |
| 16m 29s | |
| 3m 55s | |
| 3m 46s | |
| 3m 51s | |
| 3m 34s | |
| 1h 10m 45s |