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प्रश्न
Find if the following number is a prime number:
91
उत्तर
91
The divisors of 91 are 1, 7, 13, and 91 i.e. 91 has more than 2 factors. Therefore 91 is not a prime number.
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संबंधित प्रश्न
What are prime numbers? Give ten examples.
List all even prime numbers.
Write the smallest odd prime number.
Express the following odd number as the sum of three odd prime number:
63
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 even numbers is always even.
The only even prime number is ________________
Express the following number as the sum of three odd primes:
61
Write five pairs of prime numbers less than 20 whose sum is divisible by 5. (Hint : 3 + 7 = 10)
