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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
Find if the following number is a prime number:
87
Express the following number as the sum of twin prime:
84
State the following statement is True or False.
If a number is prime, it must be odd.
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:
385, 621
Find the HCF of
Two prime numbers
Fill in the blank.
The HCF of two consecutive odd numbers is _________
A number which has only two factors is called a ______.
Which pair represents twin prime numbers?
Which of the following is NOT a prime number?
