[amp_mcq option1=”2″ option2=”5″ option3=”1″ option4=”3″ correct=”option1″]
The answer is 3.
The numbers in the sequence are all prime numbers, except for the missing number. The missing number must be a prime number that is not in the sequence. The only prime number that is not in the sequence is 3.
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.