11
9
7
5
Answer is Wrong!
Answer is Right!
The missing number is 7.
The numbers in the sequence are all prime numbers, except for the missing number. The missing number must be a prime number that is less than 11. The only prime number that is less than 11 and is not in the sequence
is 7. Therefore, the missing number is 7.A prime number is
a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number.