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127 is a prime number from 101-200. 127 has 2 factors, 1 and 127. It is the 31st prime number, and the sixth prime number from 101-200. It is the 4th Mersenne Prime, being 27 - 1 = 127, the second Double Mersenne Prime and smallest Triple Mersenne Prime (both facts since 7 is a Double Mersenne Prime).

ProofsEdit

  • Yes — 127 can be divided by 1.
  • No — 127 cannot be divided by 2-126.
  • Yes — 127 can be divided by 127.

As an Exponent of Mersenne NumberEdit

2127 - 1 is a prime number. It is the 12th Mersenne Prime. The full number consists of 39 digits:

170141183460469231731687303715884105727

Relationship with other odd numbersEdit

The numbers beforeEdit

  • The previous prime number is 113. It features a huge gap, as 113 and 127 are fourteen numbers apart.
  • Among the odd composite numbers between them:
    • 117 and 123 are divisible by 3.
    • 115 and 125 are divisible by 5.
    • 119 is divisible by 7.
    • 121 is divisible by 11. In addition, it is a square number.

The numbers afterEdit

  • The next prime number is 131.
    • 127 and 131 are four numbers apart; therefore, they are cousin primes.
  • 137 is the next prime number after 131.
    • In particular, 133 is divisible by 7, therefore not a prime number.

UsageEdit

FilmEdit

  • 127 hours, a film based on true story.

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