1331is an odd number,as it is not divisible by 2
The factors for 1331 are all the numbers between -1331 and 1331 , which divide 1331 without leaving any remainder. Since 1331 divided by -1331 is an integer, -1331 is a factor of 1331 .
Since 1331 divided by -1331 is a whole number, -1331 is a factor of 1331
Since 1331 divided by -121 is a whole number, -121 is a factor of 1331
Since 1331 divided by -11 is a whole number, -11 is a factor of 1331
Since 1331 divided by -1 is a whole number, -1 is a factor of 1331
Multiples of 1331 are all integers divisible by 1331 , i.e. the remainder of the full division by 1331 is zero. There are infinite multiples of 1331. The smallest multiples of 1331 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 1331, the answer is: No, 1331 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 1331). 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 36.483 ). 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.
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Next prime number: 1361