400 - Find the square root of this number by prime factorisation method.
Answers
Answered by
125
Solution :
Resolving the given number
400 into prime factors , we get
400 = 2×2×2×2×5×5
= (2×2)×(2×2)×(5×5)
Therefore ,
Square root of 400
= √400
= √(2×2)×(2×2)×(5×5)
= 2 × 2 × 5
= 20
••••
Answered by
28
the square root of 400is 20
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