Find the smallest number by which each of the following numbers should be multiplied so as to get a perfect square. Also, find the square root of the perfect square thus obtained. a) 3072 b) 4802 c) 1452 d) 845
Q. Find the smallest number by which each of the following numbers should be multiplied so as to get a perfect square. Also, find the square root of the perfect square thus obtained. a) 3072 b) 4802 c) 1452 d) 845
Factorize 3072: To find the smallest number by which 3072 should be multiplied to get a perfect square, we first factorize 3072 into its prime factors.3072=210×3
Make 3072 a perfect square: To make 3072 a perfect square, we need to have pairs of prime factors. We have an even power of 2, which is good, but we need another 3 to pair up with the existing one.So, we need to multiply 3072 by 3 to get a perfect square.3072×3=210×32
Square root of 3072: The square root of the perfect square obtained by multiplying 3072 by 3 is: (210×32)=25×3=32×3=96
Factorize 4802: Now, we move on to the number 4802. We factorize 4802 into its prime factors.4802=2×2401=2×74
Make 4802 a perfect square: To make 4802 a perfect square, we need to multiply it by 2 to pair up with the existing 2. 4802×2=22×74
Square root of 4802: The square root of the perfect square obtained by multiplying 4802 by 2 is:22×74=2×72=2×49=98
Factorize 1452: Next, we consider the number 1452. We factorize 1452 into its prime factors.1452=22×3×112
Make 1452 a perfect square: To make 1452 a perfect square, we need to multiply it by 3 to pair up with the existing 3.1452×3=22×32×112
Square root of 1452: The square root of the perfect square obtained by multiplying 1452 by 3 is:(22×32×112)=2×3×11=6×11=66
Factorize 845: Finally, we look at the number 845. We factorize 845 into its prime factors. 845=5×132
Make 845 a perfect square: To make 845 a perfect square, we need to multiply it by 5 to pair up with the existing 5. 845×5=52×132
Square root of 845: The square root of the perfect square obtained by multiplying 845 by 5 is:(52×132)=5×13=65
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