Q: What pair of prime numbers make 12?

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The prime numbers between 12 and 48 are 13,17,19,23,29,31,37,41,43,47.

The prime numbers from 12 to 24 are 13, 17, 19, and 23.

Prime numbers up to 12 are: 2, 3, 5, 7 and 11

There are six prime numbers between 12 and 35: 13,17,19,23,29,31

The GCF is a single number so there cannot be any pair of numbers in the answer.

Related questions

They are: 5+7 = 12

I suggest factoring each pair of numbers, and checking whether they have, or don't have, common factors. A pair of numbers is said to be "relatively prime" if they have no common factors (their greatest common factor is 1). For larger numbers, Euclid's algorithm could be used, but for such small numbers, factoring is probably faster.

Co prime numbers are a pair of numbers not having any common factors other tha 1 or -1.

17 is a prime number. 8 and 12 are not prime numbers.

2 and 3 are prime numbers that are factors of 12. There is an infinite list of prime numbers that aren't.

The prime numbers between 12 and 48 are 13,17,19,23,29,31,37,41,43,47.

5 and 30

The prime numbers from 12 to 24 are 13, 17, 19, and 23.

12 and 252 is a pair of numbers that fit those criteria.

12 and 35 are NOT prime numbers.

Prime numbers up to 12 are: 2, 3, 5, 7 and 11

There are six prime numbers between 12 and 35: 13,17,19,23,29,31