Solution: 1238 is not a prime number
Methods
Is 1238 a prime number?
Let us begin by defining what a prime number is: a prime number is a number that is divisible by only itself and 1. Since we know that 1238 has more than two factors, then we can come to the conclusion that 1238 is not a prime number and thus we say that 1238 is a composite number.
\intlongdivision
1234513
\intlongdivision{12345}{13}
\intlongdivision 12345 13
Find out if these other numbers are prime too or not!
When it comes to prime numbers, it’s best to learn about them through experience - so why not have a look and find out if any of these numbers are prime or not?
Is 1410 a Prime Number?
Is 2945 a Prime Number?
Is 3578 a Prime Number?
Is 1886 a Prime Number?
Is 3177 a Prime Number?