Math homework….twin primes…?
make a list of twin primes that are greater than 3.
17,19 41,43 51,53 57,59 59,61 69,71 71,73 87,89 89,91 91,93 101,103
that is my list
then it asks what do I notice about the numbers in between the twin primes….
18, 42, 52, 58, 60, 70, 72, 88, 90, 92, 102
I notice they are all even numbers…duh
I notice they all end in 0, 2, and 8.
I can’t think of anything else I see….couldn’t see a pattern unless I am missing numbers somewhere…
Does anyone else have any ideas for me?
Favorite Answer
69 is not a prime number because it is divisible by 3…. 69/3 = 23
57 is not a prime number because it is divisible by 3… 57/3 = 19
http://en.wikipedia.org/wiki/List_of_prime_numbers
Twin primes
(p, p + 2) are both prime.
(3, 5), (5, 7), (11, 13), (17, 19), (29, 31), (41, 43), (59, 61), (71, 73), (101, 103), (107, 109), (137, 139), (149, 151), (179, 181), (191, 193), (197, 199), (227, 229), (239, 241), (269, 271), (281, 283), (311, 313), (347, 349), (419, 421), (431, 433), (461, 463), (521, 523), (569, 571), (599, 601), (617, 619), (641, 643), (659, 661)
6 / 12 / 18 / 30 / 42 / 60 / 72 / 102
The numbers in between the twin primes, they are all divisible by “6”….
Hope this helps!!!
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