yB on Nostr: 昜曰|梅森(Mersenne)素数{3,7}与隡佗(#Satoshi)数{21} 3 × 7 = 21 ...
昜曰|梅森(Mersenne)素数{3,7}与隡佗(#Satoshi)数{21}
3 × 7 = 21
【儿童乘法口诀：三七二十一】
2ᵖ⁻¹ - 1是个梅森数，然而，只有当 p＝3 时p－1才是素数，此时2³⁻¹ = 7。
Published at
2024-07-07 00:33:28Event JSON
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