05-05-2017, 04:49 PM
139
The number 139
The number 139
Quote:139 is the 34th prime number. It is a twin prime with 137. Because 141 is a semiprime, 139 is a Chen prime. 139 is the smallest prime before a prime gap of length 10.
This number is the sum of five consecutive prime numbers (19 + 23 + 29 + 31 + 37).
It is the smallest factor of 64079. It is also the smallest factor of the first nine terms of the Euclid–Mullin sequence, making it the tenth term.
139 is a happy number and a strictly non-palindromic number.