18 times 28 is 504. In symbols: 18 × 28 = 504, and 28 × 18 = 504 too.
18 × 28 means adding 18 to itself 28 times: that is 28 copies of 18, which add up to 504.
18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216, ... (keep going to the 28th multiple). The 28th multiple of 18 is 504.
18 × 28 = 18 × 20 + 18 × 8 = 360 + 144 = 504.
Halve one number and double the other: 18 × 28 = 9 × 56 = 504.
504 ÷ 18 = 28
504 ÷ 28 = 18
504 is even. Prime factorization: 2 × 2 × 2 × 3 × 3 × 7.
| Multiplication | Answer |
|---|---|
| 17 × 28 | 476 |
| 19 × 28 | 532 |
| 18 × 27 | 486 |
| 18 × 29 | 522 |
| 18 × 30 | 540 |
| 18 × 26 | 468 |
| 20 × 28 | 560 |
| 16 × 28 | 448 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.