Monday, August 4, 2014

2004

2004 = 2 x 2 x 3 x 167.

2004 has a square with the last three digits the same as the three digits before them: 20042 = 4016016.

22004 + 823 is a prime. It is the smallest prime of the form 22004 + k. The reversal of 22004 is a prime (A057708).

(2004 x 4002) - 1 is a prime.


2004 was a year in which there were five Sundays in the month of February (A119406).

Source: Prime Curios!

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