A few days ago
Anonymous

Math homework….twin primes…?

The following questions refer to 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?

Top 3 Answers
A few days ago
blueskies

Favorite Answer

Note 51 is NOT a prime number because it is divisible by 3… 51/3 = 17

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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A few days ago
Vegetarian Era
well 5 and 7 are prime numbers too
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4 years ago
cobia
I merely prefer to help you recognize one element dude, am particularly hopeless in math and programming, i don’t understand what the hell you have written, yet i assume people who’re drawn to programming would have some thing to help you recognize, all the final!!!!
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