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प्रश्न
What are prime numbers? Give ten examples.
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उत्तर
Prime number: A number is called a prime number if it has only two factors, namely 1 and itself.
Examples: 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29 are prime numbers.
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संबंधित प्रश्न
What are composite numbers? Can a composite number be odd? If yes, write the smallest odd composite number.
What are twin primes?
Write all the pairs of twin primes between 50 and 100
Show that the following pairs are co-primes:
512, 945
Show that the following pairs are co-primes:
385, 621
Which of the following is a prime number?
Find the prime numbers in the list given below.
22, 37, 43, 48, 53, 60, 91, 57, 59, 77, 79, 97, 100
The number of prime numbers between 11 and 60 is _________
Every natural number is either prime or composite
Which of the following number is prime?
51
Express the following number as the sum of three odd primes:
61
