Which one of the following is a prime number ?
A. 161
B. 221
C. 373
D. 437
E. None of these
Answer: Option C
Solution(By Examveda Team)
437 > 22All prime numbers less than 22 are : 2, 3, 5, 7, 11, 13, 17, 19
161 is divisible by 7, and 221 is divisible by 13
373 is not divisible by any of the above prime numbers.
Therefore 373 is prime
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Comments ( 1 )
Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
why you did 437>22