9
Chat with our AI personalities
The answer is 21. 21 X 21=441 and that's between 400 and 450
They are 21 and 28
Positive integer multiples of 23 which lie between 400 and 499 are: 23 x 18 = 414 23 x 19 = 437 23 x 20 = 460 23 x 21 = 483
14, 21, and 28
7, 14, 21 & 28