20 times 28 is 560. In symbols: 20 × 28 = 560, and 28 × 20 = 560 too.
20 × 28 means adding 20 to itself 28 times: that is 28 copies of 20, which add up to 560.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 28th multiple). The 28th multiple of 20 is 560.
20 × 28 = 20 × 20 + 20 × 8 = 400 + 160 = 560.
Halve one number and double the other: 20 × 28 = 10 × 56 = 560.
560 ÷ 20 = 28
560 ÷ 28 = 20
560 is even. Prime factorization: 2 × 2 × 2 × 2 × 5 × 7.
| Multiplication | Answer |
|---|---|
| 19 × 28 | 532 |
| 21 × 28 | 588 |
| 20 × 27 | 540 |
| 20 × 29 | 580 |
| 20 × 30 | 600 |
| 20 × 26 | 520 |
| 22 × 28 | 616 |
| 18 × 28 | 504 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.