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Chapter 4: Q27. (page 174)

Tell whether the number is prime or composite.

19

Short Answer

Expert verified

19 is a prime number.

Step by step solution

01

Step-1-Recall the concept of prime and composite numbers

Prime numbers are the numbers which are divisible by 1 and itself.

Composite numbers are the numbers which have factors other than 1 and itself.

02

Step-2- Find the factors of the given number

The factors of 19 are 1 and 19.

There are no other number which divides 19 completely.

Therefore, 19 is a prime number.

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