In addition we can say of the number 24 that it is even
24 is an even number, as it is divisible by 2 : 24/2 = 12
The factors for 24 are all the numbers between -24 and 24 , which divide 24 without leaving any remainder. Since 24 divided by -24 is an integer, -24 is a factor of 24 .
Since 24 divided by -24 is a whole number, -24 is a factor of 24
Since 24 divided by -12 is a whole number, -12 is a factor of 24
Since 24 divided by -8 is a whole number, -8 is a factor of 24
Since 24 divided by -6 is a whole number, -6 is a factor of 24
Since 24 divided by -4 is a whole number, -4 is a factor of 24
Since 24 divided by -3 is a whole number, -3 is a factor of 24
Since 24 divided by -2 is a whole number, -2 is a factor of 24
Since 24 divided by -1 is a whole number, -1 is a factor of 24
Multiples of 24 are all integers divisible by 24 , i.e. the remainder of the full division by 24 is zero. There are infinite multiples of 24. The smallest multiples of 24 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 24, the answer is: No, 24 is not a prime number.
To know the primality of an integer, we can use several algorithms. The most naive is to try all divisors below the number you want to know if it is prime (in our case 24). We can already eliminate even numbers bigger than 2 (then 4 , 6 , 8 ...). Besides, we can stop at the square root of the number in question (here 4.899 ). Historically, the Eratosthenes screen (which dates back to Antiquity) uses this technique relatively effectively.
More modern techniques include the Atkin screen, probabilistic tests, or the cyclotomic test.
Previous prime number: 23
Next prime number: 29