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प्रश्न
Find if the following number is a prime number:
91
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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
List all even prime numbers.
Write the smallest odd prime number.
Express the following odd number as the sum of three odd prime number:
35
Express the following odd number as the sum of three odd prime number:
63
Show that the following pairs are co-primes:
161, 192
Fill in the blank.
Two perfect numbers are ________ and _______
Write 'T' for true and 'F' for false for the following statement.
The sum of two even numbers is always even.
Which of the prime numbers are even numbers?
Write five pairs of prime numbers less than 20 whose sum is divisible by 5. (Hint : 3 + 7 = 10)
Which statement correctly describes a prime number?
