You can tell whether a number is a square number by looking at the last digit. A perfect square number ends with either 1, 4, 5, 6, 9 or 00.
Try it out. Take the square root on a calculator, and see whether you get a whole number.
45
See whether the number is divisible by 2, and by all odd numbers up to the square root of the number. For numbers up to 100, it is enough to check the factors 2, 3, 5, and 7. For higher numbers you need to check more factors. For very large numbers (for example, hundreds of digits), more efficient methods are known, but those methods are also more complicated.
To check if your number is a square number, draw little dots. like, for 4 it will 2 dots by 2 dots. if this doesn't work equally, it is not a square number.
A number is prime if it only has two distinct factors.
You can tell whether a number is a square number by looking at the last digit. A perfect square number ends with either 1, 4, 5, 6, 9 or 00.
Try it out. Take the square root on a calculator, and see whether you get a whole number.
If your question is whether or not 177 has a square root which is an integer, then no.
45
If the whole number is a perfect square, its square root is rational. If not, it's not.
See whether the number is divisible by 2, and by all odd numbers up to the square root of the number. For numbers up to 100, it is enough to check the factors 2, 3, 5, and 7. For higher numbers you need to check more factors. For very large numbers (for example, hundreds of digits), more efficient methods are known, but those methods are also more complicated.
For a number to be a perfect square, the number's square root has to be a whole number. 9 is a perfect square because its square root is a whole number, 3. If the square root of the number is a decimal, then it is not a perfect square. For example, 13 does not divide evenly so it not a perfect square.
To check if your number is a square number, draw little dots. like, for 4 it will 2 dots by 2 dots. if this doesn't work equally, it is not a square number.
If it can't be expressed as a fraction then it is an irrational number
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.
write a c++program by using if statement to read a number and check whether it is positive or negative