20 times 27 is 540. In symbols: 20 × 27 = 540, and 27 × 20 = 540 too.
20 × 27 means adding 20 to itself 27 times: that is 27 copies of 20, which add up to 540.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 27th multiple). The 27th multiple of 20 is 540.
20 × 27 = 20 × 20 + 20 × 7 = 400 + 140 = 540.
Halve one number and double the other: 20 × 27 = 10 × 54 = 540.
540 ÷ 20 = 27
540 ÷ 27 = 20
540 is even. Prime factorization: 2 × 2 × 3 × 3 × 3 × 5.
| Multiplication | Answer |
|---|---|
| 19 × 27 | 513 |
| 21 × 27 | 567 |
| 20 × 26 | 520 |
| 20 × 28 | 560 |
| 20 × 29 | 580 |
| 20 × 25 | 500 |
| 22 × 27 | 594 |
| 18 × 27 | 486 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.