Instructions: Click on :
all multiples of 2 except 2,
all multiples of 3 except 3,
all multiples of 5 except 5,
all multiples of 7 except 7,
and all multiples of 11 except 11.
At the end, the numbers left are the prime numbers.
Time: 00:00
Score: 0
Done: 0/74
Session complete! The numbers left on the board are the prime numbers.