A square number is an integer which is the square of some smaller integer. For example, 144 is square because 144 = 12*12 = 12^2
400 is a square number because 400 = 20^2. Anything bigger than 20, when multiplied by itself, will make a square greater than 400.
How about 21?
Chat with our AI personalities
400 times greater
407 ÷ 11 = 37 Therefore, the answer is 407
324 (=18²) and 361 (=19²) fulfil the requirements that they are greater than 300 and less than 400.
The square root of 400 is 20, and the square root of 450 is approximately 21.21. Therefore, the square number between 400 and 450 is 441, which is the square of 21.
441 or 484