In addition we can say of the number 148 that it is even
148 is an even number, as it is divisible by 2 : 148/2 = 74
The factors for 148 are all the numbers between -148 and 148 , which divide 148 without leaving any remainder. Since 148 divided by -148 is an integer, -148 is a factor of 148 .
Since 148 divided by -148 is a whole number, -148 is a factor of 148
Since 148 divided by -74 is a whole number, -74 is a factor of 148
Since 148 divided by -37 is a whole number, -37 is a factor of 148
Since 148 divided by -4 is a whole number, -4 is a factor of 148
Since 148 divided by -2 is a whole number, -2 is a factor of 148
Since 148 divided by -1 is a whole number, -1 is a factor of 148
Multiples of 148 are all integers divisible by 148 , i.e. the remainder of the full division by 148 is zero. There are infinite multiples of 148. The smallest multiples of 148 are:
It is possible to determine using mathematical techniques whether an integer is prime or not.
for 148, the answer is: No, 148 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 148). 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 12.166 ). 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: 139
Next prime number: 149