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Chapter 4: Q30. (page 174)

Tell whether the number is prime or composite.

84

Short Answer

Expert verified

84 is a composite 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

Observe thatthe factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.

Therefore, 84 is a composite number.

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