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Chapter 4: Q7. (page 174)

Tell whether the number is prime or composite.9

Short Answer

Expert verified

9 is a composite number.

Step by step solution

01

.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

. Find the factors of the given number

Observe that,

9÷3=33÷3=1

Therefore, the factors of 59 are 1, 3 and 9.

03

. Conclusion

Since 9 has factors other than 1 and itself, it is a composite number.

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