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Chapter 4: Q28. (page 174)

Tell whether the number is prime or composite.

121

Short Answer

Expert verified

121 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 16 are1, 11 and 121.

Therefore, 121 is a composite number.

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Most popular questions from this chapter

Copy and complete the factor tree. Then write the prime factorization of the number.

Tell whether the number is prime or composite. If it is composite, write its prime factorization.

175

Write the prime factorization of the number.

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Find the GCF. Also, Find whether the numbers are relatively prime or not : 58,60

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1) Write the prime factorization of each number.

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