Q: Is the sum of two prime numbers can be composite?

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The sum of two prime numbers will be composite unless one of the prime numbers is 2.

The sum of any two prime numbers is not always a composite number. The sum of 2 and 11 is 13, and 13 is a prime number, not a composite number.

The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.

No, they are not. You can add two composite numbers, 15 and 14 for example, and get a sum, 29, that is prime.

Not always as for example 20+9 = 29 which is a prime number

Related questions

The sum of two prime numbers will be composite unless one of the prime numbers is 2.

The sum of any two prime numbers is not always a composite number. The sum of 2 and 11 is 13, and 13 is a prime number, not a composite number.

composite

The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.

No, they are not. You can add two composite numbers, 15 and 14 for example, and get a sum, 29, that is prime.

Not always as for example 20+9 = 29 which is a prime number

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4nd 9.

65 and 77

21 and 32

The product of two prime numbers will be composite.

Prime numbers have two factors, composite numbers have more than two.