Advent calendar 2021
21 December
Arrange the digits 1–9 (using each digit exactly once) so that the three digit number in:
the middle row is a prime number;
the bottom row is a square number;
the left column is a cube number;
the middle column is an odd number;
the right column is a multiple of 11.
The 3-digit number in the first row is today's number.
| today's number | |||
| prime | |||
| square | |||
| cube | odd | multiple of 11 |