36 is the square of 6; 100 is the square of 10; 121 is the square of 11. 71, 62, and 343 are not squares of whole numbers.
A trick for figuring out squares of larger numbers that is sometimes helpful: if you can write the numbers as the product of two different numbers, then you can square those two numbers and multiply that to find the square of the original. 602 = 102*62 = 100*36 = 3600
18 times
The digit 3 will be written 20 times.
Among the whole numbers, these are:149162536496481100
100,000,000,000,000
It is: 81
There are nine square numbers including 1 below 100 (1x1...9x9). So, there are 99 - 9 'not square numbers' below 100 which is 90
There are 10 square numbers
A trick for figuring out squares of larger numbers that is sometimes helpful: if you can write the numbers as the product of two different numbers, then you can square those two numbers and multiply that to find the square of the original. 602 = 102*62 = 100*36 = 3600
18 times
The digit 3 will be written 20 times.
1,4,9,16,25,36,49,64,81,100
Both 25 and 4 are factors of 100 and are square numbers, 25 is 52 and 4 is 22. 100 and 1 are also factors of 100, and are also square numbers: 1 is 12 and 100 is 102.
Among the whole numbers, these are:149162536496481100
10000000000
100,000,000,000,000
100,000,000,000