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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:
30 and 40
Express the following number as the sum of two odd prime:
36
Express the following number as the sum of twin prime:
120
Show that the following pairs are co-primes:
512, 945
The smallest prime number is ______.
Write 'T' for true and 'F' for false for the following statement.
The sum of two even numbers is always even.
Find the prime numbers in the list given below.
22, 37, 43, 48, 53, 60, 91, 57, 59, 77, 79, 97, 100
Write five pairs of prime numbers less than 20 whose sum is divisible by 5. (Hint : 3 + 7 = 10)
Which pair represents twin prime numbers?
Which of the following is NOT a prime number?
