Mathematics
NULL
Medium
Question
Which number is not a prime ending in 7?
A
27
✓ Official correct answer
B
37
C
47
D
67
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
27
No member explanations yet for this option.
B
37
No member explanations yet for this option.
C
47
No member explanations yet for this option.
D
67
No member explanations yet for this option.
Explanation
37, 47 and 67 are primes; 27 is 3³, not prime.