15 times 18 is 270. In symbols: 15 × 18 = 270, and 18 × 15 = 270 too.
15 × 18 means adding 15 to itself 18 times: that is 18 copies of 15, which add up to 270.
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, ... (keep going to the 18th multiple). The 18th multiple of 15 is 270.
15 × 18 = 15 × 10 + 15 × 8 = 150 + 120 = 270.
Halve one number and double the other: 15 × 18 = 9 × 30 = 270.
270 ÷ 15 = 18
270 ÷ 18 = 15
270 is even. Prime factorization: 2 × 3 × 3 × 3 × 5.
| Multiplication | Answer |
|---|---|
| 14 × 18 | 252 |
| 16 × 18 | 288 |
| 15 × 17 | 255 |
| 15 × 19 | 285 |
| 15 × 20 | 300 |
| 15 × 16 | 240 |
| 17 × 18 | 306 |
| 13 × 18 | 234 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.