Which of the following numbers are prime ?
97
Given , the number is 97
97=1×97
Since 97 has only two unique factors 1and itself 97 .
Hence , 97 is a prime number .
Are 91,97and103 prime numbers? If not, which are not prime numbers?
Show that the following pairs are co primes 59,97.
How many natural numbers are there from 87 to 97? What fraction of them are prime numbers?