Coupon Accepted Successfully!



  • The square of a number is the number multiplied by itself.
  • If the prime factors of a natural number can be paired, it is a perfect square.   
  • Numbers ending in 2, 3, 7 or 8, or in an odd number of zeros are never perfect squares.
  • Squares of even numbers are even. Squares of odd numbers are odd.  
  • The square of a natural number n is equal to the sum of the first n odd numbers.
  • The difference of the square of two consecutive numbers is equal to the sum of the numbers. 
  • Three natural numbers a, b and c are called a Pythagorean triplet if a2+ b2 = c2
  • For any number n, (2n, n2 -1, n2 + 1) is a Pythagorean triplet. 
  • Pairing of numbers in a decimal number to find square root by the long division method should be done.

Test Your Skills Now!
Take a Quiz now
Reviewer Name