The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :
938 is multiplo of 1
938 is multiplo of 2
938 is multiplo of 7
938 is multiplo of 14
938 is multiplo of 67
938 is multiplo of 134
938 is multiplo of 469
938 has 7 positive divisors
In addition we can say of the number 938 that it is even
938 is an even number, as it is divisible by 2 : 938/2 = 469
The factors for 938 are all the numbers between -938 and 938 , which divide 938 without leaving any remainder. Since 938 divided by -938 is an integer, -938 is a factor of 938 .
Since 938 divided by -938 is a whole number, -938 is a factor of 938
Since 938 divided by -469 is a whole number, -469 is a factor of 938
Since 938 divided by -134 is a whole number, -134 is a factor of 938
Since 938 divided by -67 is a whole number, -67 is a factor of 938
Since 938 divided by -14 is a whole number, -14 is a factor of 938
Since 938 divided by -7 is a whole number, -7 is a factor of 938
Since 938 divided by -2 is a whole number, -2 is a factor of 938
Since 938 divided by -1 is a whole number, -1 is a factor of 938
Multiples of 938 are all integers divisible by 938 , i.e. the remainder of the full division by 938 is zero. There are infinite multiples of 938. The smallest multiples of 938 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 938, the answer is: No, 938 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 938). 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 30.627 ). 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: 937
Next prime number: 941