0
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
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
Write the natural numbers 1to15 what fraction of them are prime numbers what fraction of them are the composite number?
2/5 are prime, 8/15 are composite (and 1/15 is neither).
What fraction represents the number of prime numbers from 1-20?
2/5 of the numbers from 1 to 20 are prime numbers
How many prime numbers are in 1-49?
There are 15 prime numbers between 1 and 49
What are all the prime numbers from 1-15?
Prime numbers from 1 to 15 are 2, 3, 5, 7, 11 and 13.
What fraction of numbers between 1 to 25 is prime numbers?
There are 23 numbers in the range and so the fraction is 9/23.
Write the natural numbers 1to15 what fraction of them are prime numbers what fraction of them are the composite number?
2/5 are prime, 8/15 are composite (and 1/15 is neither).
What fraction of numbers from 1 to 50 are prime numbers?
It is 15/50 = 3/10.
What fraction of the numbers from 1 to 50 are prime numbers?
3/10 are prime.
What fraction represents the number of prime numbers from 1-20?
2/5 of the numbers from 1 to 20 are prime numbers
How many prime numbers are in 1-49?
There are 15 prime numbers between 1 and 49
What are all the prime numbers from 1-15?
Prime numbers from 1 to 15 are 2, 3, 5, 7, 11 and 13.
Are 15 and 33 prime numbers?
No, they are composite numbers. The factors of 15 are 1, 3, 5, and 15. The factors of 33 are 1, 3, 11, and 33. Prime numbers have two factors: 1 and the number itself, so 15 and 33 cannot be prime.
What fraction of numbers between 1 to 25 is prime numbers?
There are 23 numbers in the range and so the fraction is 9/23.
How many prime numbers between 1 and 52?
There are 15 prime numbers in between 1 and 52. 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47
What are three prime numbers with a sum of 15?
11+3+1=15 but 1 is not a prime number. 3 + 5 + 7 = 15
How many prime numbers are there is from 1 to 50?
15 of them.
Why are the prime factors of 15 1 3 and 5?
The prime factors of 15 are 3 and 5 because 3 and 5 are prime numbers that divide evenly into 15. 1 is a factor of 15, but it is not a prime number.
