Twelve is the first number with two pairs of factors (2 x 6 and 3 x 4). Primes, on the other hand, have no pairs of factors other than the trivial pair of one and the prime number itself. Considering that contrast, here’s an interesting fact about primes and the number 12.
Add 12 to a prime, and you often get another prime.
For all of the primes from 1 = 100, what are the chances that when you add 12, the sum is another prime? Express your answer as a ratio, decimal or percent.
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