Q: What are some pairs of primes that are consencutive numbers?

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9-9

Nobody invented them. Some prime numbers were found to be next-but-one to one another, and these were called twin primes.

There are no two primes whose sum, difference, product or quotient is 97. However, there may be some non-standard binary operation such that two primes can be combined to make 97.

Some pairs of prime numbers are: 3, 5 11, 17 7, 23

There are no two consecutive primes whose sum, difference, product or quotient is 56.However, there may be some non-standard binary operation such that two primes can be combined to make 56.

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No.

There are some patterns, but none that can help you determine, in all cases, whether the number is a prime or not.For example: * All primes except 2 are odd numbers. However, not all odd numbers are primes. * All primes greater than 3 are of the form 6n - 1, or 6n + 1. However, not all numbers of this form are primes.

9-9

Nobody invented them. Some prime numbers were found to be next-but-one to one another, and these were called twin primes.

All primes are integers, but all integers are not prime.

There are no two primes whose sum, difference, product or quotient is 97. However, there may be some non-standard binary operation such that two primes can be combined to make 97.

Some pairs of prime numbers are: 3, 5 11, 17 7, 23

There are no two consecutive primes whose sum, difference, product or quotient is 56.However, there may be some non-standard binary operation such that two primes can be combined to make 56.

To answer this question, you first need to break the number down into its prime factors: 63 = 3x3x7 To find two numbers that multiply to make 63, one number must be the product of some of these primes, and the other must be the product of the rest (you can also use 1). Thus the possible pairs are: 1x63 3x21 7x9

There is no known prime formula to identify all primes. There are some formulae that work only for some classes of primes. Mathematicians have

In any large range of numbers, more so the higher and larger the range is, there will be more composites than primes. It is far more likely that a given number will be divisible by some number less than the number itself, the higher you go.

Composite numbers are numbers composed of 2 or more primes. 2 is a prime number. Any other (positive) even number is a product of 2 and some other number (not 1).