1,4,9,16,25,36,49,64,81,100,121,144,169,196,225
When you square a number, the final digit is the final digit of the 'one's' number squared. Since the only single digit numbers squared which ends in 6 are 4 and 6, the answer is either 4 or 6 (a calculator tells me it is 6) 0 squared is 0. All numbers ending in 0 when squared will end in 0. 1 squared is 1. All numbers ending in 1 when squared will also end in 1. 2 squared is 4. All numbers ending in 2 when squared will end in 4. 3 squared is 9. All numbers ending in 3 when squared will end in 9. 4 squared is 16. All numbers ending in 4 when squared will end in 6. 5 squared is 25. All numbers ending in 5 when squared will end in 5. 6 squared is 36. All numbers ending in 6 when squared will end in 6. 7 squared is 49. All numbers ending in 7 when squared will end in 9. 8 squared is 64. All numbers ending in 8 when squared will end in 4. 9 squared is 81. All numbers ending in 9 when squared will end in 1. So square numbers can only end with 0, 1, 4, 5, 6 or 9.
225 (15 squared)256 (16 squared)289 (17 squared)324 (18 squared)
It is impossible to list all squared prime numbers as there is an infinite number of squared prime numbers starting with 4, 9, 25, 49, 121, 169, 289, 361, 529, 841,...
There are an infinity of numbers and each one has its square...
Yes. Except for square of 1.
Yes.
(-1)2=1 all squared numbers turn out positive and 12=1 (-1)2=1 all squared numbers turn out positive and 12=1
3.82 =14.44 so the numbers are 14 and 15
+ 2.7 and - 2.7
1, 4 and 9
All integers are rational numbers.
7.9 7.9² = 62.41 15² = 225■