It is: 2*2*7 = 28
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No, because 28 can only be calculated as a product in the following ways: 1 x 28 2 x 14 4 x 7 In the above cases, 28, 14 and 4 are all non-prime numbers, which means that 28 cannot be a product of 2 prime numbers alone.
How many numbers are in 28
As a product of its prime factors: 2*23 = 46 As a product of its prime factors: 2*2*7 = 28
28 = 2x2x7
The sum of the first five prime numbers is 28. The sum of the cubes of the first three prime numbers is 160. The average of 28 and 160 is 94.