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The first 5 prime numbers are 1, 2, 3, 5 and 7 - add them all together and divide by 5 (the amount of numbers you have) and you get 18/5 = 3.6

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Not true. 1 is not a prime.

The first 5 primes are 2, 3, 5, 7, 11 and their mean is 5.6.

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Q: What is the average mean of the first 5 prime numbers?
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