Prime Factorization of Whole Numbers from 2 through 122 2 = 2 3 = 3 4 = 2 x 2 5 = 5 6 = 2 x 3 7 = 7 8 = 2 x 2 x 2 9 = 3 x 3 10 = 2 x 5 11 = 11 12 = 2 x 2 x 3 13 = 13 14 = 2 x 7 15 = 3 x 5 16 = 2 x 2 x 2 x 2 17 = 17 18 = 2 x 3 x 3 19 = 19 20 = 2 x 2 x 5 21 = 3 x 7 22 = 2 x 11 23 = 23 24 = 2 x 2 x 2 x 3 25 = 5 x 5 26 = 2 x 13 27 = 3 x 3 x 3 28 = 2 x 2 x 7 29 = 29 30 = 2 x 3 x 5 31 = 31 32 = 2 x 2 x 2 x 2 x 2 33 = 3 x 11 34 = 2 x 17 35 = 5 x 7 36 = 2 x 2 x 3 x 3 37 = 37 38 = 2 x 19 39 = 3 x 13 40 = 2 x 2 x 2 x 5 41 = 41 42 = 2 x 3 x 7 43 = 43 44 = 2 x 2 x 11 45 = 3 x 3 x 5 46 = 2 x 23 47 = 47 48 = 2 x 2 x 2 x 2 x 3 49 = 7 x 7 50 = 2 x 5 x 5 51 = 3 x 17 52 = 2 x 2 x 13 53 = 53 54 = 2 x 3 x 3 x 3 55 = 5 x 11 56 = 2 x 2 x 2 x 7 57 = 3 x 19 58 = 2 x 29 59 = 59 60 = 2 x 2 x 3 x 5 61 = 61 62 = 2 x 31 63 = 3 x 3 x 7 64 = 2 x 2 x 2 x 2 x 2 x 2 65 = 5 x 13 66 = 2 x 3 x 11 67 = 67 68 = 2 x 2 x 17 69 = 3 x 23 70 = 2 x 5 x 7 x 71 = 71 72 = 2 x 2 x 2 x 3 x 3 73 = 73 74 = 2 x 37 75 = 3 x 5 x 5 76 = 2 x 2 x 19 77 = 7 x 11 78 = 2 x 3 x 13 79 = 79 80 = 2 x 2 x 2 x 2 x 5 81 = 3 x 3 x 3 x 3 82 = 2 x 41 83 = 83 84 = 2 x 2 x 3 x 7 85 = 5 x 17 86 = 2 x 43 87 = 3 x 29 88 = 2 x 2 x 2 x 11 89 = 89 90 = 2 x 3 x 3 x 5 91 = 7 x 13 92 = 2 x 2 x 23 93 = 3 x 31 94 = 2 x 47 95 = 5 x 19 96 = 2 x 2 x 2 x 2 x 2 x 3 97 = 97 98 = 2 x 7 x 7 99 = 3 x 3 x 11 100 = 2 x 2 x 5 x 5 101 = 101 102 = 2 x 3 x 17 103 = 103 104 = 2 x 2 x 2 x 13 105 = 3 x 5 x 7 106 = 2 x 53 107 = 107 108 = 2 x 2 x 3 x 3 x 3 109 = 109 110 = 2 x 5 x 11 111 = 3 x 37 112 = 2 x 2 x 2 x 2 x 7 113 = 113 114 = 2 x 3 x 19 115 = 5 x 23 116 = 2 x 2 x 29 117 = 3 x 3 x 13 118 = 2 x 59 119 = 7 x 17 120 = 2 x 2 x 2 x 3 x 5 121 = 11 x 11 122 = 2 x 61