Enrhifo
2\sqrt{16521}\approx 257.068084367
Rhannu
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\sqrt{66.084\times 1000}
Cyfrifo 10 i bŵer 3 a chael 1000.
\sqrt{66084}
Lluosi 66.084 a 1000 i gael 66084.
2\sqrt{16521}
Ffactora 66084=2^{2}\times 16521. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 16521} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{16521}. Cymryd isradd 2^{2}.
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Terfynau
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