What is the square root of 139?

Answer

11.789826

139 is not a perfect square11.789826² = 11.789826² ≈ 13911.789826 × 11.789826 = ≈ 139

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How We Calculated This

√n — the number which, multiplied by itself, equals n

√139 = 11.789826

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Calculated using verified formulas. Last updated March 2026.