4 times 15 is 60. In symbols: 4 × 15 = 60, and 15 × 4 = 60 too.
4 × 15 means adding 4 to itself 15 times: that is 15 copies of 4, which add up to 60.
4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, ... (keep going to the 15th multiple). The 15th multiple of 4 is 60.
4 × 15 = 4 × 10 + 4 × 5 = 40 + 20 = 60.
Halve one number and double the other: 4 × 15 = 2 × 30 = 60.
60 ÷ 4 = 15
60 ÷ 15 = 4
60 is even. Prime factorization: 2 × 2 × 3 × 5.
| Multiplication | Answer |
|---|---|
| 3 × 15 | 45 |
| 5 × 15 | 75 |
| 4 × 14 | 56 |
| 4 × 16 | 64 |
| 4 × 17 | 68 |
| 4 × 13 | 52 |
| 6 × 15 | 90 |
| 2 × 15 | 30 |
See also: factors of 60.
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