find the square root of each of the following by prime factorisation. 7744
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7744=2×3872
=2×2×1936
=2×2×2×968
=2×2×2×2×484
=2×2×2×2×2×242
=2×2×2×2×2×2×121
=2×2×2×2×2×2×11×11
= 88
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