Question

Any number in the form of 2p – 1, where p is a prime is known as:
(a) Dual Prime
(b) Goldbach Prime
(c) Mersenne Prime
(d) Golden Number

Answer 1

a. dual prime
this is the answer

Answer 2

Any number in the form of 2p – 1, where p is a prime is known as (c) Mersenne Prime  .

• Mersenne Primes are those prime numbers that are one less than an integral power of two (2ⁿ-1). It can also be expressed as 2ᵃ - 1 where a is a prime number.
• Goldbach Prime is any number that can be expressed as a sum of any two prime numbers provided these prime numbers are odd.
• Dual/twin prime is any prime number that is either 2 less or 2 more than another prime number. An Example is 41 and 43.
• The golden number in mathematics refers to the golden ratio.