no, 12 can be made by 2 and 6, 3 and 4 and 15 can be made from 3 and 5, etc
If you mean: 12 13 15 17 27 and 29 then the prime numbers are 13 17 and 29
12 (2x2x3)
5 and 12 8 and 15
No, 12 and 15 aren't relatively prime, because they both share as a prime factor 3. Dividing both12 and 15 by 3 gives 4 and 5 respectively. Consecutive numbers are always coprime. Coprime numbers are relatively prime to each other, as they share no prime factors, for example 33 and 35,
All numbers have factors. Some factors are prime numbers. These are known as prime factors. Some numbers have some of the same prime factors as other numbers. These are known as common prime factors. 3 is a common prime factor of 12 and 15.
There are 15 prime numbers up to 50.
the sum of the first 15 prime numbers is 328 .
The product of the prime numbers 3 and 5 is 15.
17 is a prime number. 8 and 12 are not prime numbers.
5 and 11 are prime. The others are not (3 x 4 =12, 3 x 5 =15, 2 x 11 =22)
The given numbers of 15 and 35 are not prime numbers but they add up to 50
2 and 3 are prime numbers that are factors of 12. There is an infinite list of prime numbers that aren't.