50 POINTS!!
What is the sum of the first four composite numbers?
19
20
27
28
2 answers:
Answer:
C.27
Step-by-step explanation:
Composite number is a number that have factor other than 1 or the number itself. It is the opposite of prime number. Then to solve this question it will be easier to make this list
2= 2 *1 = prime
3= 3 *1 = prime
4= 2 *2 = composite
5= 5 *1 = prime
6= 2 *3 = composite
7= 7 *1 = prime
8= 2 *2 * 2 = composite
9= 3 *3 = composite
then 4 first composite is: 4+6+8+9= 27
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