1187is an odd number,as it is not divisible by 2
The factors for 1187 are all the numbers between -1187 and 1187 , which divide 1187 without leaving any remainder. Since 1187 divided by -1187 is an integer, -1187 is a factor of 1187 .
Since 1187 divided by -1187 is a whole number, -1187 is a factor of 1187
Since 1187 divided by -1 is a whole number, -1 is a factor of 1187
Multiples of 1187 are all integers divisible by 1187 , i.e. the remainder of the full division by 1187 is zero. There are infinite multiples of 1187. The smallest multiples of 1187 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 1187, the answer is: yes, 1187 is a prime number because it only has two different divisors: 1 and itself (1187).
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 1187). 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 34.453 ). 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: 1181
Next prime number: 1193