Advertisements
Advertisements
Question
Which of the following is a prime number?
Options
117
171
179
none of these
Advertisements
Solution
179
117 is not a prime number because 117 can be written as 3 × 39.
171 is not a prime number because 171 can be written as 19×9.
179 is a prime number.
APPEARS IN
RELATED QUESTIONS
Find if the following number is a prime number:
87
Write 'T' for true and 'F' for false for the following statement.
Every even number is composite.
For which of the numbers, from n = 2 to 8, is 2n − 1 a prime?
The numbers 13 and 31 are prime numbers. Both these numbers have the same digits 1 and 3. Find such pairs of prime numbers up to 100.
Express the following as the sum of two odd primes.
44
Which of the following number is prime?
51
Which of the following number is prime?
37
Which of the following number is prime?
26
Express the following number as the sum of three odd primes:
61
2 is the only even prime number.
