Test of Essential Academic Skills (TEAS) ATI Mathematics Practice Test

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What is the average of the first five prime numbers?

  1. 3

  2. 5

  3. 7

  4. 11

The correct answer is: 5

To find the average of the first five prime numbers, we first need to identify what those numbers are. The first five prime numbers are 2, 3, 5, 7, and 11. Next, we calculate their sum: 2 + 3 + 5 + 7 + 11 = 28. To find the average, we divide the sum by the number of values, which in this case is 5: 28 รท 5 = 5.6. Since the average can sometimes be expressed in whole numbers for certain contexts, the closest whole number to 5.6 is 5. The choice corresponding to the average is therefore correct, as it reflects the average value derived from the sum of the first five prime numbers. This process also highlights how prime numbers function in arithmetic, emphasizing their unique properties as numbers greater than 1 that are only divisible by 1 and themselves.

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