407is an odd number,as it is not divisible by 2
The factors for 407 are all the numbers between -407 and 407 , which divide 407 without leaving any remainder. Since 407 divided by -407 is an integer, -407 is a factor of 407 .
Since 407 divided by -407 is a whole number, -407 is a factor of 407
Since 407 divided by -37 is a whole number, -37 is a factor of 407
Since 407 divided by -11 is a whole number, -11 is a factor of 407
Since 407 divided by -1 is a whole number, -1 is a factor of 407
Multiples of 407 are all integers divisible by 407 , i.e. the remainder of the full division by 407 is zero. There are infinite multiples of 407. The smallest multiples of 407 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 407, the answer is: No, 407 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 407). 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 20.174 ). 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: 401
Next prime number: 409