160709is an odd number,as it is not divisible by 2
The factors for 160709 are all the numbers between -160709 and 160709 , which divide 160709 without leaving any remainder. Since 160709 divided by -160709 is an integer, -160709 is a factor of 160709 .
Since 160709 divided by -160709 is a whole number, -160709 is a factor of 160709
Since 160709 divided by -1 is a whole number, -1 is a factor of 160709
Since 160709 divided by 1 is a whole number, 1 is a factor of 160709
Multiples of 160709 are all integers divisible by 160709 , i.e. the remainder of the full division by 160709 is zero. There are infinite multiples of 160709. The smallest multiples of 160709 are:
0 : in fact, 0 is divisible by any integer, so it is also a multiple of 160709 since 0 × 160709 = 0
160709 : in fact, 160709 is a multiple of itself, since 160709 is divisible by 160709 (it was 160709 / 160709 = 1, so the rest of this division is zero)
321418: in fact, 321418 = 160709 × 2
482127: in fact, 482127 = 160709 × 3
642836: in fact, 642836 = 160709 × 4
803545: in fact, 803545 = 160709 × 5
etc.
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 160709, the answer is: yes, 160709 is a prime number because it only has two different divisors: 1 and itself (160709).
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 160709). 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 400.885 ). 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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