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Let’s start with a simple one. What comes next in this sequence of prime numbers? 11, 13, 17, 19, ?

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Continue with the IQ test afterwards
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Interesting fact:

The most popular favorite number in the world, according to a recent poll, is 7. Nearly 3,000 people (around 10% of the total asked) chose 7 and 3 came in a close 2nd. Perhaps this is why the Chinese have these as their lucky numbers!