Cunningham chain

what is a cunningham chain?

• A Cunningham chain of length k (of the first kind) is sequence of k primes, each which is twice the preceding one plus one. For example, {2, 5, 11, 23, 47} and {89, 179, 359, 719, 1439, 2879}.

• a Cunningham chain is a man named Cunningham tied to a chain

Tags

CCSS.4.OA.C.5

Are these 2 sequences Cunningham chain numbers:

{2, 5, 11, 23, 47}

{89, 179, 359, 719, 1439, 2879}

• Yes

• No

• Maybe

• I don't know

Tags

CCSS.3.OA.D.9

a Cunningham chain is a sequence of ___ numbers

Tags

CCSS.4.OA.C.5

pick the number 2.

double it add 1,

what do you get

• 2

• 3

• 4

• 5

Tags

CCSS.5.OA.B.3

In mathematics, a Cunningham chain is a certain sequence of prime numbers . Cunningham chains are named after mathematician A. J. C. Cunningham. They are also called chains of nearly doubled primes.

• ok

• sure

• wow

• oky dokey

Tags

CCSS.4.OA.C.5