The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :
4990 is multiplo of 1
4990 is multiplo of 2
4990 is multiplo of 5
4990 is multiplo of 10
4990 is multiplo of 499
4990 is multiplo of 998
4990 is multiplo of 2495
4990 has 7 positive divisors
In addition we can say of the number 4990 that it is even
4990 is an even number, as it is divisible by 2 : 4990/2 = 2495
The factors for 4990 are all the numbers between -4990 and 4990 , which divide 4990 without leaving any remainder. Since 4990 divided by -4990 is an integer, -4990 is a factor of 4990 .
Since 4990 divided by -4990 is a whole number, -4990 is a factor of 4990
Since 4990 divided by -2495 is a whole number, -2495 is a factor of 4990
Since 4990 divided by -998 is a whole number, -998 is a factor of 4990
Since 4990 divided by -499 is a whole number, -499 is a factor of 4990
Since 4990 divided by -10 is a whole number, -10 is a factor of 4990
Since 4990 divided by -5 is a whole number, -5 is a factor of 4990
Since 4990 divided by -2 is a whole number, -2 is a factor of 4990
Since 4990 divided by -1 is a whole number, -1 is a factor of 4990
Multiples of 4990 are all integers divisible by 4990 , i.e. the remainder of the full division by 4990 is zero. There are infinite multiples of 4990. The smallest multiples of 4990 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 4990, the answer is: No, 4990 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 4990). 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 70.64 ). 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: 4987
Next prime number: 4993