Advertisements
Advertisements
प्रश्न
Find if the following number is a prime number:
91
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Show that the following pairs are co-primes:
161, 192
Show that the following pairs are co-primes:
343, 432
Which of the following is a composite number?
Fill in the blank.
The HCF of two consecutive odd numbers is _________
Write 'T' for true and 'F' for false for the following statement.
The HCF of two given numbers is always a factor is their LCM.
Express the following as the sum of two odd prime.
18
Which of the following number is prime?
26
Write five pairs of prime numbers less than 20 whose sum is divisible by 5. (Hint : 3 + 7 = 10)
The Sum of two prime numbers is always even.
Which of the following is NOT a prime number?
