👉 In mathematics, a shriven number or shriven numeral is a type of number that has been shrunk in size from a larger number. This means that instead of having two digits (like 10), it now has only one digit, which can be any digit from 0 to 9.
For example, the number 2345 becomes 23450 when shriven into a single digit:
```
2
10^3 + 3