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8501is an odd number,as it is not divisible by 2
The factors for 8501 are all the numbers between -8501 and 8501 , which divide 8501 without leaving any remainder. Since 8501 divided by -8501 is an integer, -8501 is a factor of 8501 .
Since 8501 divided by -8501 is a whole number, -8501 is a factor of 8501
Since 8501 divided by -1 is a whole number, -1 is a factor of 8501
Since 8501 divided by 1 is a whole number, 1 is a factor of 8501
Multiples of 8501 are all integers divisible by 8501 , i.e. the remainder of the full division by 8501 is zero. There are infinite multiples of 8501. The smallest multiples of 8501 are:
0 : in fact, 0 is divisible by any integer, so it is also a multiple of 8501 since 0 × 8501 = 0
8501 : in fact, 8501 is a multiple of itself, since 8501 is divisible by 8501 (it was 8501 / 8501 = 1, so the rest of this division is zero)
17002: in fact, 17002 = 8501 × 2
25503: in fact, 25503 = 8501 × 3
34004: in fact, 34004 = 8501 × 4
42505: in fact, 42505 = 8501 × 5
etc.
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 8501, the answer is: yes, 8501 is a prime number because it only has two different divisors: 1 and itself (8501).
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 8501). 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 92.201 ). 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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