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Can every odd number greater than 3 be written as the sum of two prime numbers?
Wiki User
∙ 11y ago
No.
Consider that every prime number except 2 is an odd number.
Consider also that the sum of two odd numbers is always an even number.
Thus, the only case in which an odd number can be expressed as the sum of two primes is when it is 2 greater than a prime number, since it can take advantage of the only even Prime number, 2.
For example, 21 can be expressed as 2+19, both of which are primes. However, 27 has no such two primes, since 25 is not prime (5x5=25).
Wiki User
∙ 11y ago
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Is Every whole number greater then 1 can be written as the sum of two prime numbers?
true
What is every whole numbers greater than one is either a prime number or can be written as a product of a prime number in an unique way?
The Fundamental theorem of arithmetic.
Which is greater the greatest whole number with 5 digits or the least whole number with 6 numbers?
Every six-digit number is greater than any five-digit number.
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.
What are all the even numbers less than 1000?
Every second number greater than 2 is an even number.
Is Every whole number greater then 1 can be written as the sum of two prime numbers?
true
What is every number greater then 1 can be written in prime factorization form?
Those are composite numbers.
Can every whole number greater than one be written as the sum of two prime numbers?
No.
Who was the mathematician who made a conjecture that every even number greater than two can be written as the sum of two prime numbers?
Goldbach
What two numbers do every number greater than 1 have as factors?
Every number greater than 1 has the two factors 1 and the number itself.
What is every whole numbers greater than one is either a prime number or can be written as a product of a prime number in an unique way?
The Fundamental theorem of arithmetic.
What are the number that greater than 2 are composite?
There are an infinite amount of numbers greater than two that are composite numbers. Every even number, for instance, is a composite number
Can every rational number be written as a quotient?
Every number can be written as a quotient.Every rational number can be written as a quotient of whole numbers.
What two numbers does every number greater than 1 have as factors?
' 1 ' and itself.
Why are every positive rational number greater than every negative rational number?
It is because of the way in which positive and negative numbers are defined.
What theory can every even number greater than 4 can be written as the sum of two odd prime numbers?
it is known as gold bach conjecture since 1742
Is every integer greater than -1 is a whole number?
Any number that is not a fraction, percent, decimal, or negative is a whole number. Counting numbers are whole numbers. Counting numbers are 1, 2, 3, 4, 5,... Zero is a whole number. So yes, every integer greater then negative one is a whole number, and so is -1 and every integer less than -1.
