10
QuizMultiple Choice

Prime Numbers and Prime Factorization

Question 10 • FL-1205010-M/J Grade 6 Mathematics A-CR

What is the sum of the first four composite numbers?

Answer
A
19
B
20
C
27
D
28

Explanation

A composite number has more than two positive factors. The first four composite numbers are 4, 6, 8, and 9; 1 is neither prime nor composite. Their sum is 4 + 6 + 8 + 9 = 27, so the answer is 27.

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