Is this statement true or false ?

The product of consecutive primes from 2 to any prime plus 1 is a prime.

For example:

1) 2 + 1 = 3

2) 2 x 3 + 1 = 7

3) 2 x 3 x 5+1 = 31

4) 2 x 3 x 5 x 7 +1 = 211

. . and so on...

True False

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2 solutions

Vijay Simha
Jul 29, 2015

It breaks down for:

2 x 3 x 5 x 7 x 11 x 13 + 1 = 30031 = 59x509 -> (Not prime)

Mohit Gupta
Jul 30, 2015

Well if this was to be true for all values then reimann hypothesis would not be needed

It is Riemann hypothesis

Vijay Simha - 5 years, 10 months ago

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