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Safe Primes

A safe prime is a prime number of the form 2p + 1, where p is also a prime. (Conversely, the prime p is a Sophie Germain prime.) The first few safe primes are

First 20: 5, 7, 11, 23, 47, 59, 83, 107, 167, 179, 227, 263, 347, 359, 383, 467, 479, 503, 563, 587

Checkout list of first: 10, 50, 100, 500, 1000 safe primes. You can also check all safe primes.

Checkout safe primes up to: 100, 500, 1000, 10000.

Visualization#

Every frame counter is increased by one. If it is safe prime then dot appears. Color has no meaning. Video has 25fps.

You can also compare it with other types.

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