3631is an odd number,as it is not divisible by 2
The factors for 3631 are all the numbers between -3631 and 3631 , which divide 3631 without leaving any remainder. Since 3631 divided by -3631 is an integer, -3631 is a factor of 3631 .
Since 3631 divided by -3631 is a whole number, -3631 is a factor of 3631
Since 3631 divided by -1 is a whole number, -1 is a factor of 3631
Since 3631 divided by 1 is a whole number, 1 is a factor of 3631
Multiples of 3631 are all integers divisible by 3631 , i.e. the remainder of the full division by 3631 is zero. There are infinite multiples of 3631. The smallest multiples of 3631 are:
0 : in fact, 0 is divisible by any integer, so it is also a multiple of 3631 since 0 × 3631 = 0
3631 : in fact, 3631 is a multiple of itself, since 3631 is divisible by 3631 (it was 3631 / 3631 = 1, so the rest of this division is zero)
7262: in fact, 7262 = 3631 × 2
10893: in fact, 10893 = 3631 × 3
14524: in fact, 14524 = 3631 × 4
18155: in fact, 18155 = 3631 × 5
etc.
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 3631, the answer is: yes, 3631 is a prime number because it only has two different divisors: 1 and itself (3631).
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 3631). 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 60.258 ). 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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