20 times 30 is 600. In symbols: 20 × 30 = 600, and 30 × 20 = 600 too.
20 × 30 means adding 20 to itself 30 times: that is 30 copies of 20, which add up to 600.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 30th multiple). The 30th multiple of 20 is 600.
20 × 30 = 20 × 30 = 600 = 600.
Halve one number and double the other: 20 × 30 = 10 × 60 = 600.
600 ÷ 20 = 30
600 ÷ 30 = 20
600 is even. Prime factorization: 2 × 2 × 2 × 3 × 5 × 5.
| Multiplication | Answer |
|---|---|
| 19 × 30 | 570 |
| 21 × 30 | 630 |
| 20 × 29 | 580 |
| 20 × 28 | 560 |
| 22 × 30 | 660 |
| 18 × 30 | 540 |
See also: factors of 600.
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.