For how many two-digit primes is the sum of the digits equal to...

The sum of two primes is 60. What are the numbers?

how many two-digit primes have a ones digit of 1???????????????????? got no clue

Two consecutive odd primes, such as 11 and 13, are called a pair of "twin patterns

Two consecutive odd primes, such as 11 and 13, are called a pair of "twin primes" how many pairs of...

three consecutive primes are summed. when the sum is squared, the result is 72,361. what is the larg...

Let A be the set of primes less than 6 and B be the set of positive odd numbers less than 6. How...

How many sets of 3 primes sum to 20?

If p and q are different primes (so each > or = 2) and if n= pq, then the number of integers of the...

The primes 3, 5, and 17 have the property such that their quadratic nonresidues are also primitive r...

mersenne primes are always of the form 2^n - 1 where n is any positive integer. true or false

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