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The list of **all positive divisors** (that is, the list of all integers that **divide 22**) is as follows :

Accordingly:

**720** is multiplo of **1**

**720** is multiplo of **2**

**720** is multiplo of **3**

**720** is multiplo of **4**

**720** is multiplo of **5**

**720** is multiplo of **6**

**720** is multiplo of **8**

**720** is multiplo of **9**

**720** is multiplo of **10**

**720** is multiplo of **12**

**720** is multiplo of **15**

**720** is multiplo of **16**

**720** is multiplo of **18**

**720** is multiplo of **20**

**720** is multiplo of **24**

**720** is multiplo of **30**

**720** is multiplo of **36**

**720** is multiplo of **40**

**720** is multiplo of **45**

**720** is multiplo of **48**

**720** is multiplo of **60**

**720** is multiplo of **72**

**720** is multiplo of **80**

**720** is multiplo of **90**

**720** is multiplo of **120**

**720** is multiplo of **144**

**720** is multiplo of **180**

**720** is multiplo of **240**

**720** is multiplo of **360**

**720** has **29 positive divisors **

In addition we can say of the number **720 that it is even**

720 is an even number, as it is divisible by 2 : 720/2 = 360

The factors for 720 are all the numbers between -720 and 720 , which divide 720 without leaving any remainder. Since 720 divided by -720 is an integer, -720 is a factor of 720 .

Since 720 divided by -720 is a whole number, -720 is a factor of 720

Since 720 divided by -360 is a whole number, -360 is a factor of 720

Since 720 divided by -240 is a whole number, -240 is a factor of 720

Since 720 divided by -180 is a whole number, -180 is a factor of 720

Since 720 divided by -144 is a whole number, -144 is a factor of 720

Since 720 divided by -120 is a whole number, -120 is a factor of 720

Since 720 divided by -90 is a whole number, -90 is a factor of 720

Since 720 divided by -80 is a whole number, -80 is a factor of 720

Since 720 divided by -72 is a whole number, -72 is a factor of 720

Since 720 divided by -60 is a whole number, -60 is a factor of 720

Since 720 divided by -48 is a whole number, -48 is a factor of 720

Since 720 divided by -45 is a whole number, -45 is a factor of 720

Since 720 divided by -40 is a whole number, -40 is a factor of 720

Since 720 divided by -36 is a whole number, -36 is a factor of 720

Since 720 divided by -30 is a whole number, -30 is a factor of 720

Since 720 divided by -24 is a whole number, -24 is a factor of 720

Since 720 divided by -20 is a whole number, -20 is a factor of 720

Since 720 divided by -18 is a whole number, -18 is a factor of 720

Since 720 divided by -16 is a whole number, -16 is a factor of 720

Since 720 divided by -15 is a whole number, -15 is a factor of 720

Since 720 divided by -12 is a whole number, -12 is a factor of 720

Since 720 divided by -10 is a whole number, -10 is a factor of 720

Since 720 divided by -9 is a whole number, -9 is a factor of 720

Since 720 divided by -8 is a whole number, -8 is a factor of 720

Since 720 divided by -6 is a whole number, -6 is a factor of 720

Since 720 divided by -5 is a whole number, -5 is a factor of 720

Since 720 divided by -4 is a whole number, -4 is a factor of 720

Since 720 divided by -3 is a whole number, -3 is a factor of 720

Since 720 divided by -2 is a whole number, -2 is a factor of 720

Since 720 divided by -1 is a whole number, -1 is a factor of 720

Since 720 divided by 1 is a whole number, 1 is a factor of 720

Since 720 divided by 2 is a whole number, 2 is a factor of 720

Since 720 divided by 3 is a whole number, 3 is a factor of 720

Since 720 divided by 4 is a whole number, 4 is a factor of 720

Since 720 divided by 5 is a whole number, 5 is a factor of 720

Since 720 divided by 6 is a whole number, 6 is a factor of 720

Since 720 divided by 8 is a whole number, 8 is a factor of 720

Since 720 divided by 9 is a whole number, 9 is a factor of 720

Since 720 divided by 10 is a whole number, 10 is a factor of 720

Since 720 divided by 12 is a whole number, 12 is a factor of 720

Since 720 divided by 15 is a whole number, 15 is a factor of 720

Since 720 divided by 16 is a whole number, 16 is a factor of 720

Since 720 divided by 18 is a whole number, 18 is a factor of 720

Since 720 divided by 20 is a whole number, 20 is a factor of 720

Since 720 divided by 24 is a whole number, 24 is a factor of 720

Since 720 divided by 30 is a whole number, 30 is a factor of 720

Since 720 divided by 36 is a whole number, 36 is a factor of 720

Since 720 divided by 40 is a whole number, 40 is a factor of 720

Since 720 divided by 45 is a whole number, 45 is a factor of 720

Since 720 divided by 48 is a whole number, 48 is a factor of 720

Since 720 divided by 60 is a whole number, 60 is a factor of 720

Since 720 divided by 72 is a whole number, 72 is a factor of 720

Since 720 divided by 80 is a whole number, 80 is a factor of 720

Since 720 divided by 90 is a whole number, 90 is a factor of 720

Since 720 divided by 120 is a whole number, 120 is a factor of 720

Since 720 divided by 144 is a whole number, 144 is a factor of 720

Since 720 divided by 180 is a whole number, 180 is a factor of 720

Since 720 divided by 240 is a whole number, 240 is a factor of 720

Since 720 divided by 360 is a whole number, 360 is a factor of 720

Multiples of 720 are all integers divisible by 720 , i.e. the remainder of the full division by 720 is zero. There are infinite multiples of 720. The smallest multiples of 720 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 720 since 0 × 720 = 0

720 : in fact, 720 is a multiple of itself, since 720 is divisible by 720 (it was 720 / 720 = 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 720, the answer is:
**No, 720 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 720). 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 26.833 ). 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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Previous prime number: 719

Next prime number: 727

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