Every number is one of the forms `5n, 5n pm 1, 5n pm 2`.

Every square number is one of the forms 5n, 5n pm 1 .

Consider the following statements : 1. If n is a prime number greater than 5, then n^(4) - 1 is divisible by 2400. 2. Every square number is of the form 5n or (5n - 1) or (5n + 1) where n is a whole number. Which of the above statements is/are correct ?

The number of all 4-digit number of the form 5n+2 (n in n) having exactly one digit 7

A number is selected from 4 digit numbers of the form 5n+2 where n belongs to N containing exactly one digit as 7 . Find the probability that number when divided by 5 leaves remainder 2.

Find the number of divisors of the number 2^(5)3^(5)5^(3)7^(3) of the form (4n+1),n in N uu{0}

The number of divisors of the natural number N where N=2^(5)x3^(5)x5^(2)x7^(3) of the form 4n+2,n in W is

The sum of the products of 2n numbers pm1,pm2,pm3, . . . . ,n taking two at time is

If for every n in N , sum to n terms of an A.P. is 5n^(2)+7n then is 10th term is