13 times 15 is 195. In symbols: 13 × 15 = 195, and 15 × 13 = 195 too.
13 × 15 means adding 13 to itself 15 times: that is 15 copies of 13, which add up to 195.
13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, ... (keep going to the 15th multiple). The 15th multiple of 13 is 195.
13 × 15 = 13 × 10 + 13 × 5 = 130 + 65 = 195.
195 ÷ 13 = 15
195 ÷ 15 = 13
195 is odd. Prime factorization: 3 × 5 × 13.
| Multiplication | Answer |
|---|---|
| 12 × 15 | 180 |
| 14 × 15 | 210 |
| 13 × 14 | 182 |
| 13 × 16 | 208 |
| 13 × 17 | 221 |
| 13 × 13 | 169 |
| 15 × 15 | 225 |
| 11 × 15 | 165 |
See also: factors of 195.
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