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 Complementary, my dear Watson (Posted on 2012-06-22)
A Digit Complementary Prime Pair is defined as a pair of prime numbers in which digits in corresponding positions sum to 0 mod 10, e.g. (4721, 6389).
Out of the 136 existing four digit pairs find at least one pair for each of the following requirements (a to f):
a. a reversible prime pair
b. the two primes contain 8 different digits
c. twin primes
d. both primes contain a permutation of 4 consecutive digits
e. first member of the pair contains the 4 prime digits in order
f. each prime contains 3 digits the same

Source: Charles W. Trigg, JRM 22:2, 1990, p 95-97

Bonus: Find a 50 digit DCPP, satisfying a).

Comments: ( Back to comment list | You must be logged in to post comments.)
 re(2): Bonus | Comment 4 of 6 |
(In reply to re: Bonus by Charlie)

Elementary, my dear Watson.  googling "50 digit DCPP",
 Posted by Ady TZIDON on 2012-06-23 11:43:34

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