The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :
Accordingly:
240 is multiplo of 1
240 is multiplo of 2
240 is multiplo of 3
240 is multiplo of 4
240 is multiplo of 5
240 is multiplo of 6
240 is multiplo of 8
240 is multiplo of 10
240 is multiplo of 12
240 is multiplo of 15
240 is multiplo of 16
240 is multiplo of 20
240 is multiplo of 24
240 is multiplo of 30
240 is multiplo of 40
240 is multiplo of 48
240 is multiplo of 60
240 is multiplo of 80
240 is multiplo of 120
240 has 19 positive divisors
In addition we can say of the number 240 that it is even
240 is an even number, as it is divisible by 2 : 240/2 = 120
The factors for 240 are all the numbers between -240 and 240 , which divide 240 without leaving any remainder. Since 240 divided by -240 is an integer, -240 is a factor of 240 .
Since 240 divided by -240 is a whole number, -240 is a factor of 240
Since 240 divided by -120 is a whole number, -120 is a factor of 240
Since 240 divided by -80 is a whole number, -80 is a factor of 240
Since 240 divided by -60 is a whole number, -60 is a factor of 240
Since 240 divided by -48 is a whole number, -48 is a factor of 240
Since 240 divided by -40 is a whole number, -40 is a factor of 240
Since 240 divided by -30 is a whole number, -30 is a factor of 240
Since 240 divided by -24 is a whole number, -24 is a factor of 240
Since 240 divided by -20 is a whole number, -20 is a factor of 240
Since 240 divided by -16 is a whole number, -16 is a factor of 240
Since 240 divided by -15 is a whole number, -15 is a factor of 240
Since 240 divided by -12 is a whole number, -12 is a factor of 240
Since 240 divided by -10 is a whole number, -10 is a factor of 240
Since 240 divided by -8 is a whole number, -8 is a factor of 240
Since 240 divided by -6 is a whole number, -6 is a factor of 240
Since 240 divided by -5 is a whole number, -5 is a factor of 240
Since 240 divided by -4 is a whole number, -4 is a factor of 240
Since 240 divided by -3 is a whole number, -3 is a factor of 240
Since 240 divided by -2 is a whole number, -2 is a factor of 240
Since 240 divided by -1 is a whole number, -1 is a factor of 240
Since 240 divided by 1 is a whole number, 1 is a factor of 240
Since 240 divided by 2 is a whole number, 2 is a factor of 240
Since 240 divided by 3 is a whole number, 3 is a factor of 240
Since 240 divided by 4 is a whole number, 4 is a factor of 240
Since 240 divided by 5 is a whole number, 5 is a factor of 240
Since 240 divided by 6 is a whole number, 6 is a factor of 240
Since 240 divided by 8 is a whole number, 8 is a factor of 240
Since 240 divided by 10 is a whole number, 10 is a factor of 240
Since 240 divided by 12 is a whole number, 12 is a factor of 240
Since 240 divided by 15 is a whole number, 15 is a factor of 240
Since 240 divided by 16 is a whole number, 16 is a factor of 240
Since 240 divided by 20 is a whole number, 20 is a factor of 240
Since 240 divided by 24 is a whole number, 24 is a factor of 240
Since 240 divided by 30 is a whole number, 30 is a factor of 240
Since 240 divided by 40 is a whole number, 40 is a factor of 240
Since 240 divided by 48 is a whole number, 48 is a factor of 240
Since 240 divided by 60 is a whole number, 60 is a factor of 240
Since 240 divided by 80 is a whole number, 80 is a factor of 240
Since 240 divided by 120 is a whole number, 120 is a factor of 240
Multiples of 240 are all integers divisible by 240 , i.e. the remainder of the full division by 240 is zero. There are infinite multiples of 240. The smallest multiples of 240 are:
0 : in fact, 0 is divisible by any integer, so it is also a multiple of 240 since 0 × 240 = 0
240 : in fact, 240 is a multiple of itself, since 240 is divisible by 240 (it was 240 / 240 = 1, so the rest of this division is zero)
etc.
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 240, the answer is: No, 240 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 240). 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 15.492 ). 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: 241