2, 3 and 5 are prime numbers but 15 is a composite number because it has more than two factors
No, they are not a set of prime numbers.
Of that list, 2, 3 and 5 are prime.
Prime numbers from 1 to 15 are 2, 3, 5, 7, 11 and 13.
The prime numbers are: 2 3 5 7 11 and 13 so therefore as a fraction of 15 it is 6/15 or 2/5 simplified
You cannot find the first 15 prime numbers by dividing by 2 and 3. This method would not identify 25 as being a composite.
Both 3 and 5 are prime numbers. 3 x 5 = 15
3, 7 and 47 are prime numbers. 30 is not a prime since it is divisible by 2, 3, 5, 6, 10 and 15.
There are six prime numbers that are less than 15: 2 3 5 7 11 and 136 of them.
2 3 5 7 11 13 15
The product of the prime numbers 3 and 5 is 15.
15 because 5 and 3
The prime numbers between 1 and 15 are 2, 3, 5, 7, 11, and 13. To find the sum, you simply add these numbers together: 2 + 3 + 5 + 7 + 11 + 13 = 41. Therefore, the sum of prime numbers between 1 and 15 is 41.