To get the arithmetic mean, sum them up and divide by the count (in this case 10). So we have 12 + 14 + 15 + 16 + 18 + 20 + 21 + 22 + 24 + 25 = 187. Divide by 10 is 18.7
The set of composite numbers includes all whole numbers greater than 1 that are not prime numbers. The first few composite numbers are 2, 4, 6, 8, 11, 13, etc.
The first composite number is 4.
The first 6 composite numbers are 4, 6, 8, 9, 10, and 12.
The first number is odd, the second is odd. Odd + Odd = Even ie the sum is even. Either number is greater than 2 so their sum is greater than 2. All even numbers greater than 2 are composite.
120
The set of composite numbers includes all whole numbers greater than 1 that are not prime numbers. The first few composite numbers are 2, 4, 6, 8, 11, 13, etc.
12, 16, 20
the answer of the first 4 composite numbers is 27
The first composite number is 4.
Any two numbers can have only one arithmetic mean. If the numbers are x and y, then their arithmetic mean is (x + y)/2.
The first composite number greater than 21 is 22.
21 22 24 25 26 27 28 30 32 33
33 is the first composite number that is greater than 30 but is not a multiple of 2
4 is the first composite number greater than 1.
4
the answer is 120 because the first three prime numbers are 2,3,5 and the first three composite numbers are 4,6,8.
The first 6 composite numbers are 4, 6, 8, 9, 10, and 12.