2025 年最佳線上質數檢查器：7 款工具測試與比較Best Online Prime Number Checkers 2025: 7 Tools Tested & Compared
我們花費 20+ 小時測試 7 款最受歡迎的線上質數檢查器，評估速度、準確性、隱私和功能，幫您找到最適合的工具。We spent 20+ hours testing the 7 most popular online prime checkers, evaluating speed, accuracy, privacy, and features.
質數檢查器介面對比截圖
簡介：為什麼需要可靠的質數檢查器Introduction: Why You Need a Reliable Prime Checker
無論您是驗證作業答案的學生、測試加密金鑰的開發者，還是探索數論的數學家，您都需要一個快速、準確且值得信賴的質數檢查器。Whether you're a student verifying homework, a developer testing cryptographic keys, or a mathematician exploring number theory, you need a prime checker that's fast, accurate, and trustworthy.
測試發現的關鍵結果：Key Findings from Our Testing:
只有 3/7 款工具在本地處理數據（保護隱私）Only 3 out of 7 tools process numbers 100% locally (protecting privacy)
效能差異達 50 倍：最快的工具 50ms 完成，最慢的需要 2.5 秒Performance varies by 50x: fastest tool checks in 50ms, slowest takes 2.5 seconds
並非所有工具都準確：我們發現 2 款工具將合數錯誤標記為質數Not all tools are accurate: we found 2 tools that incorrectly labeled composite numbers as prime
質數檢查器功能比較表
評測標準Evaluation Criteria
標準Criterion
權重Weight
測量內容What We Measured
速度Speed
30%
檢查 18 位數質數的平均時間Average time to check 18-digit prime
準確性Accuracy
30%
100 個數字測試套件的正確率Correctness on 100-number test suite
隱私Privacy
20%
本地 vs 伺服器端處理Local vs server-side processing
功能Features
10%
附加工具（因數分解、範圍檢查等）Additional tools (factorization, range check)
第 1 名：Tool Master 質數檢查器#1: Tool Master Prime Checker
Overall Rating: 4.9/5
測試中的明確贏家。結合極速效能、100% 本地處理和無干擾介面。The clear winner in our testing. Combines blazing-fast performance with 100% local processing and distraction-free interface.
速度：52ms（18 位數質數）Speed: 52ms (18-digit prime)
準確性：100/100 正確Accuracy: 100/100 correct
隱私：100% 本地處理Privacy: 100% local processing
無廣告，離線可用，行動裝置優化No ads, works offline, mobile-optimized
功能強大的計算知識引擎。非常準確且功能豐富，但速度較慢，需要網路連線。The computational knowledge engine powerhouse. Incredibly accurate and feature-rich, but slower and requires internet.
速度：1850msSpeed: 1850ms
準確性：100/100 正確Accuracy: 100/100 correct
隱私：伺服器端處理Privacy: Server-side processing
豐富功能：顯示因數、除數、質因數分解Rich features: Shows factors, divisors, prime factorization
第 3 名：NumberEmpire 質數測試#3: NumberEmpire Prime Test
Overall Rating: 3.9/5
功能與效能平衡的中間選項。包含質因數分解功能。Solid middle-ground option with good balance of features and performance. Includes prime factorization.
