Advent calendar 2015
18 December
Put the digits 1 to 9 (using each digit once) in the boxes so that the three digit numbers formed (reading left to right and top to bottom) have the desired properties written by their rows and columns.
| multiple of 9 | |||
| multiple of 3 | |||
| multiple of 5 | |||
| multiple of 6 | multiple of 4 | cube number |
Today's number is the multiple of 6 formed in the left hand column.