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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
Write all the prime numbers between:
10 and 40
State the following statement is True or False.
The sum of two prime numbers is always a prime number.
Show that the following pairs are co-primes:
161, 192
Which of the following is a prime number?
Which of the following is a prime number?
Find the sum of all the prime numbers between 10 and 20 and check whether that sum is divisible by all the single digit numbers.
Express the following as the sum of two odd primes.
44
Express the following as the sum of two odd prime.
24
Which of the following number is prime?
23
Which of the following is NOT a prime number?
