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Let x be a prime number such that x23. Given that y= x!+1. The number of primes in the list y+1, y+2, y+3...y+x-1 is?


Options:
A .   x-1
B .   2
C .   1
D .   None of these
E .   118
Answer: Option D
:
D

For 1nx1, y+n=x!+n+1, which is divisible by n+1 always.
Therefore, there is no prime number in this list.



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