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 Column 4 ends with three consecutive square numbers. 2 The product of the descending numbers in Row B is 264. 3 The first number in Column 3 is three times smaller than the last. 4 The row which begins with descending multiples of 7 is directly below the row beginning with three consecutive even numbers. 5 The first number in Row A is 13 more than the last number in that row.
LEVEL 2 - SENIOR ANALYST
6 The product of the first two numbers in Column 3 is equal to the third number in that column. 7 The sum of the first two numbers in Row A is 29.
LEVEL 3 - LAB ASSISTANT
8 The sum of the numbers in Column 4 is 17. 9 The number with the most factors has a 6 directly below it. 10 The only number is Column 2 that is not prime is the 8.