What will be the number in the 2nd position if the number and its position follow the following pattern? Number at ′n′th position=2n+n
Let n be a positive integer. Then the number of common factors of n2 + 3n + 1 and n2 + 4n + 3 is
Mark the correct option:
The number of pairs positive integers (m, n) such that mn = 25 is
A. 0
B. 1
C. 2
D. more than 2