25 times 25 is 625. In symbols: 25 × 25 = 625 (25 squared).
25 × 25 means adding 25 to itself 25 times: that is 25 copies of 25, which add up to 625.
25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, ... (keep going to the 25th multiple). The 25th multiple of 25 is 625.
25 × 25 = 25 × 20 + 25 × 5 = 500 + 125 = 625.
625 ÷ 25 = 25
625 is odd and a perfect square. Prime factorization: 5 × 5 × 5 × 5.
| Multiplication | Answer |
|---|---|
| 24 × 25 | 600 |
| 25 × 26 | 650 |
| 25 × 27 | 675 |
| 23 × 25 | 575 |
See also: 25 squared.
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.