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Simply add up the primes - those numbers other than 1 whose only factors are 1 and themselves. 2,3,5,7,11,13,17,19,23,29 are all the primes from 1 to 30. There are 10 of them, and the set of integers from 1 to 30 encompasses 30 numbers, so 1/3 of the integers from 1 to 30 are prime. Technically there are infinite NUMBERS between 1 and 30 (0.1, 9.57, 0.000001, ...) but only 30 integers (1,2,3, ...). If the question is phrased with the word "numbers" and not "integers" then the answer should technically be 10 primes divided by infinite numbers, and anything over infinity is 0, so your answer would be 0. So answer either 1/3 or 0; if you haven't really talked about infinity then it is probably 1/3 they are looking for.
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What fraction represents the number of prime numbers from 1-20?
2/5 of the numbers from 1 to 20 are prime numbers
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 15 are prime numbers?
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
What is the prime numbers of 20-30?
Prime numbers only have factors of 1 and themselves: 23, 29
How many prime numbers are between 1 and 30?
There are 10 prime numbers between 1 and 30. They are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29 Odd numbers between 1 and 30 that are not prime numbers are 9, 15, 21, 25, and 27 1 is also not a prime number, as 1 can multiply itself infinity times (1∞=1)
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
What fraction of numbers from 1 to 50 are prime numbers?
It is 15/50 = 3/10.
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 are the prime and composite numbers from 1 to 30?
Every number from 1-30... 1,2,3,4,5,6,7,8,9,10,11,12,1,3,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,and 30.
What are examples of relatively prime numbers?
30 and 63 are relatively prime numbers. The factors of 30 are 1, 2, 3, 5, and 30, and the factors of 63 are 1, 7, 9, and 63. Two or more numbers are relatively prime if 1 is their only common factor.
What is a good trick for simplifying fractions?
Break each part of the fraction down into prime numbers and then remove the prime numbers that make up the greatest common factor. What you are left with is the reduced fraction. 10/30 10 = 1 x 2 x 5 30 = 1 x 2 x 3 x 5 GCF = 2 x 5 = 10 The greatest common factor numbers are 2 & 5; when these numbers are removed you are left with 1/3, which is 10/30 reduced.
What fraction of numbers from 1 to 15 are prime numbers?
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
What is the prime numbers of 20-30?
Prime numbers only have factors of 1 and themselves: 23, 29
What numbers between 1 and 30 are prime?
2,3,5,7,11,13,17,19,23,29
What are all the prime numbers from 1-30?
The prime numbers from 1 - 30 are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.
What are all the prime numbers form 1-30?
Prime numbers from 1 to 30 are: 2 3 5 7 11 13 17 19 23 and 29
