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The first three prime numbers (2, 3, and 5) are unique in that all other primes, starting with 7, can be constructed from them using the formula x^n * y^n +or- z^n, where x=2; y=3; and z=5. This formula generates the set of all numbers not divisible by 2, 3 or 5, which, by definition, includes all primes >5 (For example, x^2 * y - z, or 2^2 * 3 - 5 = 7).
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What are the composite numbers with only three factors?
squares of prime numbers
Is their only two prime numbers between 40 and 50?
41,43, and 47 are all prime numbers. so there are three prime numbers between 40 and 50
What is the three prime numbers of 18?
The only two prime factors of 18 are: 2, 3
Why are two and three the only consecutive prime numbers?
The number 2 is the only even prime number - all other even numbers are divisible by 2.
Prime factorization with only three numbers?
That's an infinite list.
What are three prime numbers that equal 56?
56 does not have only three prime factors.
What numbers have three factors?
Squares of prime numbers have only three factors.
What are the composite numbers with only three factors?
squares of prime numbers
What are the prime numbers divisible by 3?
The only prime number divisible by three is three itself.
How can you tell the next square number with only three factors?
The numbers with only three factors are squares of prime numbers.
What type of numbers would have only three divisors?
prime squares
Is their only two prime numbers between 40 and 50?
41,43, and 47 are all prime numbers. so there are three prime numbers between 40 and 50
What Three prime numbers which multiply to make 225?
225 cannot be factorised into the product of only 3 prime numbers.
What is the three prime numbers of 18?
The only two prime factors of 18 are: 2, 3
Explain why two and five can be the only primes differing by three?
Because if x and y differ by three, then either x or y has to be an even number. The only even prime is 2.
Why are two and three the only consecutive prime numbers?
The number 2 is the only even prime number - all other even numbers are divisible by 2.
Can you get three consecutive prime numbers?
Only 1 2 3
