turkey-yks 2025 Q12

turkey-yks · Other · yks-tyt Not Maths
If a natural number is itself a prime number but none of its digits are prime numbers, this number is called a primeless number. For example, 109 is a primeless number.
Accordingly, what is the sum of all two-digit primeless numbers?
A) 145 B) 163 C) 189 D) 207 E) 221
If a natural number is itself a prime number but none of its digits are prime numbers, this number is called a primeless number. For example, 109 is a primeless number.

Accordingly, what is the sum of all two-digit primeless numbers?

A) 145
B) 163
C) 189
D) 207
E) 221