20 times 24 is 480. In symbols: 20 × 24 = 480, and 24 × 20 = 480 too.
20 × 24 means adding 20 to itself 24 times: that is 24 copies of 20, which add up to 480.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 24th multiple). The 24th multiple of 20 is 480.
20 × 24 = 20 × 20 + 20 × 4 = 400 + 80 = 480.
Halve one number and double the other: 20 × 24 = 10 × 48 = 480.
480 ÷ 20 = 24
480 ÷ 24 = 20
480 is even. Prime factorization: 2 × 2 × 2 × 2 × 2 × 3 × 5.
| Multiplication | Answer |
|---|---|
| 19 × 24 | 456 |
| 21 × 24 | 504 |
| 20 × 23 | 460 |
| 20 × 25 | 500 |
| 20 × 26 | 520 |
| 20 × 22 | 440 |
| 22 × 24 | 528 |
| 18 × 24 | 432 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.