GMAT Problem Solving
Home > GMAT Test > GMAT Problem Solving Questions
Next steps
- Use your browser's back button to return to your test results.
- Do more GMAT Problem Solving Questions.
Source: Manhattan
Level: 4
A "Sophie Germain" prime is any positive prime number p for which 2p + 1 is also prime. The product of all the possible units digits of Sophie Germain primes greater than 5 is
- A 3
- B 7
- C 21
- D 27
- E 189