The prime numbers from 21 to 30 are 23 and 29, totaling 2. Composite numbers are 21, 22, 24, 25, 26, 27, 28, and 30, making 8 in total for this range.
class 6 Mathematics Textbook Chapter 5 question answer
class 6 Mathematics Chapter 5 Prime Time solutions
Between 21 and 30, the prime numbers are 23 and 29, totaling 2. These numbers have no divisors other than 1 and themselves. The remaining numbers (21, 22, 24, 25, 26, 27, 28, and 30) are composite, totaling 8. Composite numbers have additional divisors, like 24 (divisible by 2, 3, 4, 6, 8, and 12). Together, primes and composites account for all integers within this interval.
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