20th left-truncatable prime is 197
20th left-truncatable prime is 197.
197 is 20th left-truncatable prime.
Learn more about Left-truncatable primes.
Neighbours#
| 3719 | 4313 | 4722 | 5319 | 6718 |
| 7318 | 8311 | 9721 | 11322 | 1379 |
| 16712 | 17310 | 19714 | 22314 | 28310 |
| 31316 | 31714 | 33712 | 34711 | 35315 |
| 36710 | 37312 | 38315 | 3979 | 44310 |
Compare with#
| 3719 | 4313 | 4722 | 5319 | 6718 |
| 7318 | 8311 | 9721 | 11322 | 1379 |
| 16712 | 17310 | 19714 | 22314 | 28310 |
| 31316 | 31714 | 33712 | 34711 | 35315 |
| 36710 | 37312 | 38315 | 3979 | 44310 |
Related#
- Learn more about Left-truncatable primes
- Check first 50 left-truncatable primes
- Check left-truncatable primes up to 500
- Check all left-truncatable primes