This is inspired by the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles, now with numbers.
If a number conforms to a special rule, I call it a Special Prime Number™.
Use the following examples below to find the rule:
A Special Prime Number™ | Not a Special Prime Number™ |
---|---|
11 | 7 |
83 | 101 |
283 | 313 |
5503 | 6397 |
7883 | 7901 |
Why are these called Special Prime Numbers™?
CSV version:
A Special Prime Number™, Not a Special Prime Number™
11,7
83,101
283,313
5503,6397
7883,7901