Right-Truncatable Prime/Examples/73,939,133
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Example of Right-Truncatable Prime
$73 \, 939 \, 133$ is a right-truncatable prime:
| \(\ds \) | \(\) | \(\ds 73 \, 939 \, 133\) | is the $4 \, 335 \, 891$st prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 7 \, 393 \, 913\) | is the $501 \, 582$nd prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 739 \, 391\) | is the $59 \, 487$th prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 73 \, 939\) | is the $7296$th prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 7393\) | is the $939$th prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 739\) | is the $131$st prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 73\) | is the $21$st prime | |||||||||||
| \(\ds \) | \(\) | \(\ds 7\) | is the $4$th prime |
$\blacksquare$
Historical Note
David Wells attributes this result in his $1997$ work Curious and Interesting Numbers, 2nd ed. to Mogens Esrom Larsen, but this has not been corroborated.
Sources
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $73,939,133$