alleryStart learning →Smallest number to multiply 252 by so the product is a perfect square?
A3
B14
C21
D7
Answer & Solution
Correct answer: D. 7
252 = 2^2 x 3^2 x 7, and only 7 has an odd power, so multiplying by 7 evens it.
Keep practising Square Roots
Browse all Square Roots questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
What is the smallest perfect square divisible by 6, 8 and 12?By what smallest number should 180 be multiplied to get a perfect square?Which perfect square is closest to 5000?Find the value of the root of 0.0004 times the root of 0.0081.The square of a positive number exceeds the number by 56. Find it.Two consecutive positive integers have squares summing to 181. The smaller is?7921 soldiers form a square. How many soldiers are in each row?2025 chairs are set in equal rows and columns. How many chairs in each row?