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139 is a prime number from 101-200. 139 has 2 factors, 1 and 139. It is the 34th prime number, and the ninth prime number from 101-200.

Proofs

  • Yes — 139 can be divided by 1.
  • No — 139 cannot be divided by 2-138.
  • Yes — 139 can be divided by 139.


As an Exponent of Mersenne Number

2139 - 1 is divisible by 5,625,767,248,687, and is therefore not a prime number.

Relationship with other odd numbers

The numbers before

  • The previous prime number is 137.
    • There are no odd numbers between 137 and 139. As a result, they are twin primes.
  • The previous prime number before 137 is 131.
    • In particular, 133 is divisible by 7, therefore not a prime number.

The numbers after

  • The next prime number is 149.
    • Notably, 143 is not a prime number because it can be factored as 11 x 13.
  • 151 is the next prime number after 149.