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प्रश्न
Find if the following number is a prime number:
63
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उत्तर
63
The divisors of 63 are 1, 3, 7, 9, 21 and 63 i.e. 63 has more than 2 factors. Therefore 63 is not a prime number.
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संबंधित प्रश्न
What are prime numbers? Give ten examples.
List all even prime numbers.
Express the following number as the sum of two odd prime:
42
State the following statement as True or False.
If two numbers are co-primes, at least one of them must be a prime number.
Write 'T' for true and 'F' for false for the following statement.
Every even number is composite.
Write 'T' for true and 'F' for false for the following statement.
The sum of two odd numbers is always odd.
Write 'T' for true and 'F' for false for the following statement.
The sum of two even numbers is always even.
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.
Prime numbers do not have any factors.
2 is the only even prime number.
