Are all square numbers odd

Answer 1

If the numbers that are squared are odd, then the squared number will be odd. For example:

32 = 9

72 = 49

172 = 289

132 = 169

212 = 441

And all even numbers that are squared result in an even number. For example:

22 = 4

82 = 64

102 = 100

282 = 784

302 = 900