3 times 19 is 57. In symbols: 3 × 19 = 57, and 19 × 3 = 57 too.
3 × 19 means adding 3 to itself 19 times: that is 19 copies of 3, which add up to 57.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ... (keep going to the 19th multiple). The 19th multiple of 3 is 57.
3 × 19 = 3 × 10 + 3 × 9 = 30 + 27 = 57.
57 ÷ 3 = 19
57 ÷ 19 = 3
57 is odd. Prime factorization: 3 × 19.
| Multiplication | Answer |
|---|---|
| 2 × 19 | 38 |
| 4 × 19 | 76 |
| 3 × 18 | 54 |
| 3 × 20 | 60 |
| 3 × 21 | 63 |
| 3 × 17 | 51 |
| 5 × 19 | 95 |
See also: factors of 57.
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