53.
2 is the least prime number.
The smallest prime number greater than 200 is 211.
It is 210.
5
There are more composite numbers than prime numbers, but there is no prime or composite number so great that you can't find a greater one of either kind.
No. You can only find the LCM of at least two numbers, prime or otherwise. The LCM of any two prime numbers is their product.
Prime factorization.
The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. If you have only one number - whether or not it is a prime - you cannot have a least COMMON multiple.
No. Any factor string of a negative number would have to include at least one negative number and there aren't any negative prime numbers.
No. Any factor string of a negative number would have to include at least one negative number and there aren't any negative prime numbers.
You need at least two numbers to find an LCM. The lowest multiple of any positive number is the number itself.
You need at least two numbers to find a GCF.