One of the following numbers is not divisible by any prime number less than 10 . Which is it?
Answer Choices
A. 2^{606}-1
B. 2^{606}+1
C. 2^{607}-1
D. 2^{607}+1
E. 2^{607}+3^{607}
One of the following numbers is not divisible by any prime number less than 10 . Which is it?
Answer Choices
A. 2^{606}-1
B. 2^{606}+1
C. 2^{607}-1
D. 2^{607}+1
E. 2^{607}+3^{607}