Solution: 655 is not a prime number
Methods
Is 655 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 655 has more than two factors, then we can come to the conclusion that 655 is not a prime number and thus we say that 655 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?
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