Which number is prime?
7
Which number is prime: 1, 4, 7?
13
Which number is prime: 10, 13, 15?
17
Which number is prime: 15, 17, 18?
19
Which number is prime: 15, 19, 21?
23
Which number is prime: 18, 21, 23?
2
Which number is prime: 2, 6, 9?
41
Which number is prime: 21, 41, 51?
61
Which number is prime: 21, 51, 61?
31
Which number is prime: 25, 27, 31?
29
Which number is prime: 25, 29, 33?
47
Which number is prime: 27, 47, 77?
37
Which number is prime: 37, 39, 42?
5
Which number is prime: 4, 5, 9?
43
Which number is prime: 43, 63, 93?
53
Which number is prime: 51, 53, 55?
59
Which number is prime: 55, 57, 59?
11
Which number is prime: 6, 9, 11?
67
Which number is prime: 63, 65, 67?
79
Which number is prime: 69, 79, 99?
71
Which number is prime: 71, 75, 77?
73
Which number is prime: 73, 77, 81?
83
Which number is prime: 81, 83, 85?
89
Which number is prime: 87, 88, 89?
97
Which number is prime: 97, 98, 99?
3
Which number is prime: 1, 3, 9?
