It is 29 because 29*23 = 667
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No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.
Find a prime number, add 2 to the number. Check if the new number is prime. IE : 3 is prime. 3+2 =5. 5 is prime. (3,5) are twin primes.
29 is a prime number, meaning it has no smaller factors. For any number up to 120, to check whether it is prime or not, it is sufficient to check whether it is divisible by the first four prime numbers (2, 3, 5 and 7).
You just have to work out it,take each number below it and check whether it is prime or not.