19 times 20 is 380. In symbols: 19 × 20 = 380, and 20 × 19 = 380 too.
19 × 20 means adding 19 to itself 20 times: that is 20 copies of 19, which add up to 380.
19, 38, 57, 76, 95, 114, 133, 152, 171, 190, 209, 228, ... (keep going to the 20th multiple). The 20th multiple of 19 is 380.
19 × 20 = 19 × 20 = 380 = 380.
Halve one number and double the other: 19 × 20 = 10 × 38 = 380.
380 ÷ 19 = 20
380 ÷ 20 = 19
380 is even. Prime factorization: 2 × 2 × 5 × 19.
| Multiplication | Answer |
|---|---|
| 18 × 20 | 360 |
| 20 × 20 | 400 |
| 19 × 19 | 361 |
| 19 × 21 | 399 |
| 19 × 22 | 418 |
| 18 × 19 | 342 |
| 20 × 21 | 420 |
| 17 × 20 | 340 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.