Is 2 prime?: Yes
Is 3 prime?: Yes
Is 4 prime?: No: 4 = 2 × 2
Is 5 prime?: Yes
Is 6 prime?: No: 6 = 2 × 3
Is 7 prime?: Yes
Is 8 prime?: No: 8 = 2 × 4
Is 9 prime?: No: 9 = 3 × 3
Is 10 prime?: No: 10 = 2 × 5
Is 11 prime?: Yes
Is 12 prime?: No: 12 = 2 × 6
Is 13 prime?: Yes
Is 14 prime?: No: 14 = 2 × 7
Is 15 prime?: No: 15 = 3 × 5
Is 16 prime?: No: 16 = 2 × 8
Is 17 prime?: Yes
Is 18 prime?: No: 18 = 2 × 9
Is 19 prime?: Yes
Is 20 prime?: No: 20 = 2 × 10
Is 21 prime?: No: 21 = 3 × 7
Is 22 prime?: No: 22 = 2 × 11
Is 23 prime?: Yes
Is 24 prime?: No: 24 = 2 × 12
Is 25 prime?: No: 25 = 5 × 5
Is 26 prime?: No: 26 = 2 × 13
Is 27 prime?: No: 27 = 3 × 9
Is 28 prime?: No: 28 = 2 × 14
Is 29 prime?: Yes
Is 30 prime?: No: 30 = 2 × 15
Is 31 prime?: Yes
Is 32 prime?: No: 32 = 2 × 16
Is 33 prime?: No: 33 = 3 × 11
Is 34 prime?: No: 34 = 2 × 17
Is 35 prime?: No: 35 = 5 × 7
Is 36 prime?: No: 36 = 2 × 18
Is 37 prime?: Yes
Is 38 prime?: No: 38 = 2 × 19
Is 39 prime?: No: 39 = 3 × 13
Is 40 prime?: No: 40 = 2 × 20
Is 41 prime?: Yes
Is 42 prime?: No: 42 = 2 × 21
Is 43 prime?: Yes
Is 44 prime?: No: 44 = 2 × 22
Is 45 prime?: No: 45 = 3 × 15
Is 46 prime?: No: 46 = 2 × 23
Is 47 prime?: Yes
Is 48 prime?: No: 48 = 2 × 24
Is 49 prime?: No: 49 = 7 × 7
Is 50 prime?: No: 50 = 2 × 25
Is 51 prime?: No: 51 = 3 × 17
Is 52 prime?: No: 52 = 2 × 26
Is 53 prime?: Yes
Is 54 prime?: No: 54 = 2 × 27
Is 55 prime?: No: 55 = 5 × 11
Is 56 prime?: No: 56 = 2 × 28
Is 57 prime?: No: 57 = 3 × 19
Is 58 prime?: No: 58 = 2 × 29
Is 59 prime?: Yes
Is 60 prime?: No: 60 = 2 × 30

Free flashcards from Peabody at peabody.kids/flashcards/facts-primes-100