731is an odd number,as it is not divisible by 2
The factors for 731 are all the numbers between -731 and 731 , which divide 731 without leaving any remainder. Since 731 divided by -731 is an integer, -731 is a factor of 731 .
Since 731 divided by -731 is a whole number, -731 is a factor of 731
Since 731 divided by -43 is a whole number, -43 is a factor of 731
Since 731 divided by -17 is a whole number, -17 is a factor of 731
Since 731 divided by -1 is a whole number, -1 is a factor of 731
Multiples of 731 are all integers divisible by 731 , i.e. the remainder of the full division by 731 is zero. There are infinite multiples of 731. The smallest multiples of 731 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 731, the answer is: No, 731 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 731). 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 27.037 ). 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: 727
Next prime number: 733