To find the prime factors of 28 start with any factor pair of 28 and keep factoring the composite factors until all the factors are prime.
28
2 x 14
2 x 2 x 7
The three prime factors of 28 are 2, 2, 7.
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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.
The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28.The sum is: 2+3+5+7+11 = 28
The first five prime numbers are 2, 3, 5, 7, and 11. I don't know what you mean by "of 28".
28
56, 84, 112