It Figures

INSTRUCTIONS

Using the clues below place the numbers 1 to 16 correctly in the grid. How many clues do you need?

LEVEL 1 - CHIEF SCIENTIST

1 All the numbers with an odd amount of factors are in Row B.

2 The sum of every column is the same, which is 2 less than the down sloping diagonal.

3 The row below the row starting with multiples of 6 contains only odd prime numbers.

4 The first row, column and upward sloping diagonal all contain three single-digit numbers.

5 The number 4 shares Column 2 with three multiples of 3.

LEVEL 2 - SENIOR ANALYST

6 The sum of each column is 34.

7 There is a -teen in every row and column.

LEVEL 3 - LAB ASSISTANT

8 Row A contains two factors of 15.

9 The product of the first three numbers in

Column 4 is 180.