3 times 28 is 84. In symbols: 3 × 28 = 84, and 28 × 3 = 84 too.
3 × 28 means adding 3 to itself 28 times: that is 28 copies of 3, which add up to 84.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ... (keep going to the 28th multiple). The 28th multiple of 3 is 84.
3 × 28 = 3 × 20 + 3 × 8 = 60 + 24 = 84.
Halve one number and double the other: 3 × 28 = 14 × 6 = 84.
84 ÷ 3 = 28
84 ÷ 28 = 3
84 is even. Prime factorization: 2 × 2 × 3 × 7.
| Multiplication | Answer |
|---|---|
| 2 × 28 | 56 |
| 4 × 28 | 112 |
| 3 × 27 | 81 |
| 3 × 29 | 87 |
| 3 × 30 | 90 |
| 3 × 26 | 78 |
| 5 × 28 | 140 |
See also: factors of 84.
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.