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As well as 1 and itself, the number 15 is divisible by 5 and 3. Therefore, it is composite - not prime.
Wiki User
∙ 13y ago
Wiki User
∙ 7y agoIt has more than two factors.
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Which is a composite number 15 or 11?
15 is a composite number. 11 is a prime number.
What are the composite number of 15?
15 is the only composite factor of 15.
Is 15 a prime or composite number?
composite because 3 and 5 will go into it
What are the 12 first composite numbers?
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
Which is a composite Number 15 17 19 or 23?
15 is composite number 17, 19 and 23 are prime numbers.
Which is a composite number 15 or 11?
15 is a composite number. 11 is a prime number.
What is 15 a prime number or composite?
15 is composite.
What are the composite number of 15?
15 is the only composite factor of 15.
Is 2 and 15 prime or composite?
2 is a prime number and 15 is a composite number.
Is the number 15 prime number or a composite?
15 is a composite. Its factors are 1, 3, 5, and 15.
Is 15 a prime or composite number?
composite because 3 and 5 will go into it
Is 13 and 15 composite number?
No, 13 is a prime number and 15 is a composite number. A composite number is a positive integer that has more than two positive divisors.
What are mathematical facts about the number 15?
15 is a composite number
Is 15 prime or composite and why?
15 is a composite number - it is the product of 3 and 5. (3*5=15)
Which number is composite 23 13 15or17?
15 is composite.
What are the 12 first composite numbers?
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
What is the only composite factor of the number 15?
15
