The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :
Accordingly:
490 is multiplo of 1
490 is multiplo of 2
490 is multiplo of 5
490 is multiplo of 7
490 is multiplo of 10
490 is multiplo of 14
490 is multiplo of 35
490 is multiplo of 49
490 is multiplo of 70
490 is multiplo of 98
490 is multiplo of 245
490 has 11 positive divisors
In addition we can say of the number 490 that it is even
490 is an even number, as it is divisible by 2 : 490/2 = 245
The factors for 490 are all the numbers between -490 and 490 , which divide 490 without leaving any remainder. Since 490 divided by -490 is an integer, -490 is a factor of 490 .
Since 490 divided by -490 is a whole number, -490 is a factor of 490
Since 490 divided by -245 is a whole number, -245 is a factor of 490
Since 490 divided by -98 is a whole number, -98 is a factor of 490
Since 490 divided by -70 is a whole number, -70 is a factor of 490
Since 490 divided by -49 is a whole number, -49 is a factor of 490
Since 490 divided by -35 is a whole number, -35 is a factor of 490
Since 490 divided by -14 is a whole number, -14 is a factor of 490
Since 490 divided by -10 is a whole number, -10 is a factor of 490
Since 490 divided by -7 is a whole number, -7 is a factor of 490
Since 490 divided by -5 is a whole number, -5 is a factor of 490
Since 490 divided by -2 is a whole number, -2 is a factor of 490
Since 490 divided by -1 is a whole number, -1 is a factor of 490
Since 490 divided by 1 is a whole number, 1 is a factor of 490
Since 490 divided by 2 is a whole number, 2 is a factor of 490
Since 490 divided by 5 is a whole number, 5 is a factor of 490
Since 490 divided by 7 is a whole number, 7 is a factor of 490
Since 490 divided by 10 is a whole number, 10 is a factor of 490
Since 490 divided by 14 is a whole number, 14 is a factor of 490
Since 490 divided by 35 is a whole number, 35 is a factor of 490
Since 490 divided by 49 is a whole number, 49 is a factor of 490
Since 490 divided by 70 is a whole number, 70 is a factor of 490
Since 490 divided by 98 is a whole number, 98 is a factor of 490
Since 490 divided by 245 is a whole number, 245 is a factor of 490
Multiples of 490 are all integers divisible by 490 , i.e. the remainder of the full division by 490 is zero. There are infinite multiples of 490. The smallest multiples of 490 are:
0 : in fact, 0 is divisible by any integer, so it is also a multiple of 490 since 0 × 490 = 0
490 : in fact, 490 is a multiple of itself, since 490 is divisible by 490 (it was 490 / 490 = 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 490, the answer is: No, 490 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 490). 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 22.136 ). 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.
Previous Numbers: ... 488, 489
Previous prime number: 487
Next prime number: 491