10
234
13
681 E. 997
Answer is Right!
Answer is Wrong!
The answer is $\boxed{10}$.
All the other numbers are prime numbers, while 10 is not. A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.
The answer is $\boxed{10}$.
All the other numbers are prime numbers, while 10 is not. A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.