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What fraction represents the number of prime numbers from 1-20?
Wiki User
∙ 11y ago
2/5 of the numbers from 1 to 20 are prime numbers
Wiki User
∙ 11y ago
6B Anchaohongpu W Ko...
6B Anchaohongpu W Ko...
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Is every prime number a rational number?
Yes. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
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).
Is pi a prime number?
Pi is not prime nor composite, instead, it is what is called irrational (It can't be written as a fraction or whole number.) Because only whole numbers can be prime, pi is not prime.
A fraction with prime numbers?
it can't be reduced.
What is a prime number times a prime number?
A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.
Is 40 out of 103 a prime number?
40 out of 103 is a fraction. Prime numbers are whole numbers. A fraction cannot be a prime number, so 40 out of 103 is not a prime number.
Can a prime number be used in a fraction?
Yes, a prime number can be used in a fraction. For example, 7/9, where 7 is the prime number. Or 7/13, where both are prime numbers.
Is every prime number a rational number?
Yes. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is this rational number is a prime number 29?
29 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is 1423 over 2642 prime?
No - prime numbers are integers - a fraction cannot be a prime number.
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 is the relationship between prime numbers and rational numbers?
All prime numbers are rational number because they can be expressed as 'top heavy' fractions as for example the prime number 3 as a fraction is 3/1
How many natural number are there from 2 to 10 What fraction of them are prime numbers?
9 natural numbers. 4/9 are prime. (this ryhmes)
Is 23 rational?
-23 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
How can you tell if a fraction is reduced?
If one of the numbers is prime and doesn't go into the other number Or the numbers have no common factors.
What fraction of the numbers from 1 to 50 are prime numbers?
3/10 are prime.
Is pi a prime number?
Pi is not prime nor composite, instead, it is what is called irrational (It can't be written as a fraction or whole number.) Because only whole numbers can be prime, pi is not prime.
