In addition we can say of the number 1604 that it is even
1604 is an even number, as it is divisible by 2 : 1604/2 = 802
The factors for 1604 are all the numbers between -1604 and 1604 , which divide 1604 without leaving any remainder. Since 1604 divided by -1604 is an integer, -1604 is a factor of 1604 .
Since 1604 divided by -1604 is a whole number, -1604 is a factor of 1604
Since 1604 divided by -802 is a whole number, -802 is a factor of 1604
Since 1604 divided by -401 is a whole number, -401 is a factor of 1604
Since 1604 divided by -4 is a whole number, -4 is a factor of 1604
Since 1604 divided by -2 is a whole number, -2 is a factor of 1604
Since 1604 divided by -1 is a whole number, -1 is a factor of 1604
Multiples of 1604 are all integers divisible by 1604 , i.e. the remainder of the full division by 1604 is zero. There are infinite multiples of 1604. The smallest multiples of 1604 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 1604, the answer is: No, 1604 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 1604). 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 40.05 ). 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 prime number: 1601
Next prime number: 1607