What
is Prime number?
A prime number can be divided only by itself or
by 1 that number is called prime number.
For Example : The number 7 can be divided only
by 7 or by 1 that means we say that the number 7 is a prime member.
Noted
point: The number
0 and 1 are not considered prime numbers.
The live demo example link https://jsfiddle.net/xfpe35tb/
JavaScript
Program code
function isPrime(number) {
d = number - 1;
// If n is less than 2 or not
an integer then we can say not a prime number.
if (number < 2) {
alert('If n is less than 2 or not
an integer then we can say not a prime number.');
return false
}
if (number !=
Math.round(number)) {
alert('If n is less than 2 or not
an integer then we can say not a prime number.');
return false
}
while (d > 1) {
if ((number % d) == 0)
{
return false;
}
d--;
}
return true;
}
if (isPrime(1)) {
alert('Prime number');
}
else {
alert('Not Prime number');
}
//The Output/Result: if input
number is 1 or 0.
'If n is less than 2 or not
an integer then we can say not a prime number.
Other than 0 and 1 will
display is prime number or not prime number.
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Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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