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How many known prime numbers are there?
There are infinite prime numbers as there is infinite numbers. You cannot limit the counting of primes.
Give you two prime numbers that are consecutive counting numbers?
2 and 3
Are there any number that are neither prime nor composite?
Yes. All prime numbers and composite numbers are positive integers, or whole counting numbers. That leaves infinitely many numbers that are neither prime nor composite. If you intended to narrow the scope of your question to the whole counting numbers or to the positive integers, then there are NO such numbers that are neither. A counting number, however large, will be either prime or composite.
Is the union of the set of prime numbers and the set of composite numbers equal to the set of counting numbers?
No. One, a counting number, doesn't belong to either of those sets.
What is another name for natural numbers?
prime or commonOrdinal number
What are the different types of numbers?
irrational numbers odd numbers even numbers whole numbers prime numbers composite numbers counting numbers
How do you get 44 using prime numbers?
Every counting number(except 1) can be expressed as product of prime numbers. So 44 can be expressed as product of prime numbers: 44 = 2x2x11 = 22x11.
List prime numbers?
Prime numbers like counting numbers go tyo inifinity. However, here are the prime numbers up to '20'. 2,3,5,7,11,13,17,& 19.
Are prime numbers still prime in non ten digit counting systems?
Yes. Being a prime number has nothing to do with the decimal system.
Which prime numbers are also consecutive numbers?
The only numbers that are consecutive and prime (ie. they are counting numbers greater than 1 that follow each other and can only be divided by themselves and 1) are;23
What are prime numbers after 150?
150 is not a prime number. The prime numbers "after" it depends on which way you're going. If you're counting down, then there are 35 prime numbers after 151. The first five are: 149, 139, 137, 131, and 127. If you're counting up, then there are an infinite number of primes after 149. The first five are: 151, 157, 163, 167, and 173.
Is 1 a relatively prime?
No. The concept of prime is defined only for natural numbers greater than 1.
