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A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 19 is prime.
What else can I help you with?
Is 15 and 16 are primes or composite?
15 and 16 are both composite numbers
What are the composite numbers from 10-30?
11, 13, 17, 19, 23, 29 are the primes between 10 and 30 so the composite numbers are all the others. 12,14,15,16,18,20,21,22,24,25,26,27,28, and 30 are the composite numbers between 10 and 30.
43 prime or composite?
Prime 2 3 5 7 11 13 17 19 doesn't go into it. This works because all other numbers are composite and are made up of primes
What prime are composite of 80?
No primes are composite. The prime factors of 80 are 2 and 5.
Is 78 prime or composite?
Composite. Even numbers higher than 2 are not Primes.
What is a product of primes?
That's a prime factorization.
Using the numbers 1-30 which ones are prime and composite?
31
Can all numbers be factored into primes?
All composite numbers can.
What do you call numbers greater than 1 that are not primes?
Composite
Is 17.5 prime?
No, it is composite.
Is 73 and 59 prime or composite?
They are primes.
What composite number that are prime?
A composite number is basically one that is NOT a prime - a composite number is a product of two or more primes.
