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A Prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 19 does not have any factors besides 1 and itself, so it is a prime number.
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Earn +20 ptsQ: Why is 19 a prime number?
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Continue Learning about Math & Arithmetic
What is a prime number 105 or 27 or 19 or 9?
19 is the prime number.
Is 19 composite number or prime number?
19 is prime.
Is 19 a prime number or a compsite?
19 is a prime number
Is 19 a composite number prime number or neither?
19 is a prime number.
What divides into 19?
'19' & '1' , because '19' is a prime number.
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