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Q: What are examples of a pair of prime numbers?

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No - co-prime numbers are pairs of numbers which share no positive integer factors apart from 1. Twin prime numbers are a pair of prime numbers with a difference of 2.

2, 3 and 5

Prime numbers that differ from each other by exactly 2 are twin primes. Examples of twin primes are 3 and 5, 17 and 19, 599 and 601.

There is no need to do prime factorization as prime numbers are already prime.

It is impossible for the product of two prime numbers to be prime. It is impossible for the sum of two prime numbers to be prime as long as one of the numbers isn't 2.

Related questions

2 and 3 are consecutive numbers that are prime.

A prime number is an integer which is greater than one and which is evenly divisible only by one and itself. A pair of prime numbers consists of two such numbers.

21 is not prime.

Any pair of consecutive integers is co-prime.

If you mean consecutive numbers that are prime? than the answer is 2,3 are consecutive numbers which are prime. except for this pair it is impossible for consecutive numbers to be prime because every second number is multiple of 2

Prime numbers are positive integers with only two factors. 2, 3, 5 and 7 are examples of prime numbers.

No.

9 is not a prime. 73 is a prime.

Any pair of prime numbers as for example 19 and 23

2 and 3 are a pair

Any pair of numbers that only have one 5 as a common prime factor. Examples: 5 and 15 35 and 45 75 and 115

The numbers are relatively prime, or co-prime.

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