7 times 23 is 161. In symbols: 7 × 23 = 161, and 23 × 7 = 161 too.
7 × 23 means adding 7 to itself 23 times: that is 23 copies of 7, which add up to 161.
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, ... (keep going to the 23th multiple). The 23th multiple of 7 is 161.
7 × 23 = 7 × 20 + 7 × 3 = 140 + 21 = 161.
161 ÷ 7 = 23
161 ÷ 23 = 7
161 is odd. Prime factorization: 7 × 23.
| Multiplication | Answer |
|---|---|
| 6 × 23 | 138 |
| 8 × 23 | 184 |
| 7 × 22 | 154 |
| 7 × 24 | 168 |
| 7 × 25 | 175 |
| 7 × 21 | 147 |
| 9 × 23 | 207 |
| 5 × 23 | 115 |
See also: factors of 161.
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