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The next square number after ten (which is not a square number) is 16. Sixteen has five factors.
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It is: 25 that is the next square number
The numbers with only three factors are squares of prime numbers.
The next square number after 16 is 25
196Its only factors (other than itself and 1) are 2, 7, and 14.
no 81 is a square number the next square number is 100
49 equals 72, and the next square number is 82 = 64.
9 is the square number after 8.
To find the factors of a number, when there are no obvious ones, first square root that number. In this case, 641 would square root to somewhere between 25 and 26. The next step is to divide 641 by each prime number between 1 and 25 in turn, seeing if it has any divisors. 641 can be shown to have no divisors between 1 and 25, and thus we can conclude it is prime. Therefore, the only factors of 641 are 1 and 641.
To draw a flowchart to check if a number is a perfect square, you would start with a start/end symbol. Then, you would input the number to be checked. Next, you would use a decision symbol with a condition to check if the square root of the number is an integer. If it is, the flowchart would output that the number is a perfect square; if not, it would output that the number is not a perfect square. Finally, you would end the flowchart.