Provide the appropriate response.
-List all digits that cannot appear in a superprime number.
A)4, 6, 8, 0
B)4, 6, 8
C)4, 6, 8, 5
D)4, 6, 8, 0, 5

Question

Quizplus · Accepted Answer

Superprime numbers are prime numbers that remain prime when digits are successively removed from the right. Digits 4, 6, 8, 0, and 5 cannot appear in a superprime number because they either make the number even (4, 6, 8, 0) and thus not prime (except for the number 2), or in the case of 5, any number ending in 5 is divisible by 5 and thus not prime (except for the number 5 itself).

Provide the Appropriate Response