3 years ago

Out of 2 9 15 21 is not a composite

Mathematics

2 answers:

Lana71 [14]3 years ago

4 0

Answer:

Step-by-step explanation:

2 is actually a prime number because composite numbers have more than 2 factors but prime numbers don't.

Harrizon [31]3 years ago

4 0

Answer: 2 Your Welcome!

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