EASY
10th Tamil Nadu Board
IMPORTANT
Earn 100

Prove that two consecutive positive integers are always co-prime.

Important Questions on Numbers And Sequences

EASY
10th Tamil Nadu Board
IMPORTANT
Is 1 a prime number?
EASY
10th Tamil Nadu Board
IMPORTANT
In how many ways a composite number can be written as product of power of primes?
EASY
10th Tamil Nadu Board
IMPORTANT
Find the number of divisors of a prime number.
EASY
10th Tamil Nadu Board
IMPORTANT
The HCF of numbers of the form 2m and 3n is _____.
EASY
10th Tamil Nadu Board
IMPORTANT
Can you think of positive integers a, b such that ab=ba?
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Can you find the 4-digit pin number pqrs of an ATM card such that p2×q1×r4×s3=3,15,000?
MEDIUM
10th Tamil Nadu Board
IMPORTANT
For what values of natural number n, 4n can end with the digit 6?
EASY
10th Tamil Nadu Board
IMPORTANT
If m, n are natural numbers, for what values of m, does 2n×5m ends in 5?