prime numbers

It can only be divided by one or itself i.e., a prime number has no factors other than 1 and itself. e.g., 2, 3, 5, 7, 11, 13, 17, 19, 23, are examples of prime numbers..

Such numbers have only 1 as common factor even though they may be composite numbers e.g., 21 and 32 are prime to each other. We generally write (21, 32) = 1, which means 21 and 32 are prime to each other i.e., they have only one factor in common viz., ..

Question: What is a prime number? Answer: A number which has only two factors, namely 1 and then number itself is called a prime number..

The sets of numbers which every student must remember are: The set of natural numbers, The set of whole numbers, The set of integers, The set of rational numbers, The set of irrational numbers, Set of Real Numbers, Consecutive intege..

01. If P(n) is the statement n 2 -n+41 is prime, prove that P(1), P(2) are true but P(41) is not tru..

The following are the Illustrative Examples: If P(n) is the statement n 2 -n+41 is prime, prove that P(1), P(2) are true but P(41) is not true. Prove by P.M.I , n < 2 n for all n ..

Which of these numbers is a prime number? => 39 or 19 or 99 or 69..

_____ is the only even and the smallest prime number. => 1 or 0 or 3 or 2..

Identify the prime number. => 47 or 9 or 38 or 50..

Identify a prime number. => 107 or 51 or 121 or 93..