2020 · Q6
If the number 23P62971335 is divisible by the smallest odd composite number, then what is the value of P?
Elementary MathematicsNumber System
- A4
- B5
- C6
- D7
Explanation
The smallest odd composite number is 9. The digit sum 2+3+P+6+2+9+7+1+3+3+5 = 41+P must be a multiple of 9, giving P = 4 (sum 45). Hence option (A).