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Just simple addition, subtraction, multiplication and division math
● 7-char prefix
13zb1hQ111111111111111111111111111 => 20d45a6a4b704db750a2c2bd3f07159698d80d6e
13zb1hQzzzzzzzzzzzzzzzzzzzzzzzzzzz => 20d45a6a9337b05029b466e310ca53586922d363
47c76298d911a425d1c33dc1d04ac5f5
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 47C76298D911A425D1C33DC1D04AC5F5 = 0x39106D151
(every 0x39106D151 will find 1 address 7-char prefix)
● 8-char prefix
13zb1hQb11111111111111111111111111 => 20d45a6a758414c1779b72697c32ea57a903e293
13zb1hQbzzzzzzzzzzzzzzzzzzzzzzzzzz => 20d45a6a76c0e5e769b1d1ee8d0e8eb7b1052c9c
13cd125f2165f8510dba46008014a09
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 13CD125F2165F8510DBA46008014A09 = 0xCEDB8B6C6A
(every 0xCEDB8B6C6A will find 1 address 8-char prefix)
● 9-char prefix
13zb1hQbW1111111111111111111111111 => 20d45a6a76227d5470a6a22c04a0bc87ad048798
13zb1hQbWzzzzzzzzzzzzzzzzzzzzzzzzz => 20d45a6a7627f3b1c8afd8c8cb8a0a66056e7ba1
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 5765D5809369CC6E94DDE5869F409 = 0x2EDDBD96902D
(every 0x2EDDBD96902D will find 1 address 9-char prefix)
● 10-char prefix
13zb1hQbWV111111111111111111111111 => 20d45a6a76252067051503284157fc9abd37adf4
13zb1hQbWVzzzzzzzzzzzzzzzzzzzzzzzz => 20d45a6a762538831cab3d7a68156376d939819c
181c17963a5226bd66dc1c01d3a8
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 181C17963A5226BD66DC1C01D3A8 = 0xA9E3CF41CAA3C
(every 0xA9E3CF41CAA3C will find 1 address 10-char prefix)
● 11-char prefix
13zb1hQbWVs11111111111111111111111 => 20d45a6a7625352fc9f79f5d6b915546d55c908e
13zb1hQbWVszzzzzzzzzzzzzzzzzzzzzzz => 20d45a6a7625359a344e13210b21d70cd5d82eb0
6a6a5673c39f9081c6007b9e22
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 6A6A5673C39F9081C6007B9E22 = 0x267D9CF4E7E91B2
(every 0x267D9CF4E7E91B2 will find 1 address 11-char prefix)
● 12-char prefix
20d45a6a7625355df5e5fc41b358e6f8581991e2
13zb1hQbWVsc1111111111111111111111 => 20d45a6a76253570014f1a30288bd88dc3ff6ffb
13zb1hQbWVsczzzzzzzzzzzzzzzzzzzzzz => 20d45a6a76253571d7012502fabee39e6bbaf2b4
1d5b20ad2d2330b10a7bb82b9
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF / 1D5B20AD2D2330B10A7BB82B9 = 0x8B8758F7C8AD0286
(every 0x8B8758F7C8AD0286 will find 1 address 12-char prefix)
========= use My GPU - RTX 3090 ====== EXE: VanitySearch-1.15.4_bitcrack
>> Search 7-char prefix
VanitySearch.exe -t 0 -gpu -o 2D3C0C.txt --keyspace 2D3C0C00000000000:+39106D151FF 13zb1hQ
255 keys were supposed to be found, 267 keys were found
VanitySearch.exe -t 0 -gpu -o 2E2B98.txt --keyspace 2E2B9800000000000:+39106D151FF 13zb1hQ
255 keys were supposed to be found, 282 keys were found
VanitySearch.exe -t 0 -gpu -o 3A82BC.txt --keyspace 3A82BC00000000000:+39106D151FF 13zb1hQ
255 keys were supposed to be found, 289 keys were found
>> Search 8-char prefix
VanitySearch.exe -t 0 -gpu -o 2A82BC.txt --keyspace 2A82BC00000000000:+CEDB8B6C6AF 13zb1hQb
15 keys were supposed to be found, 10 keys were found
VanitySearch.exe -t 0 -gpu -o 2D13BA.txt --keyspace 2D13BA00000000000:+CEDB8B6C6AF 13zb1hQb
15 keys were supposed to be found, 10 keys were found
so I say....
13zb1hQbWV 10-char prefix match in ripemd160 hash will be little reference significance
0x20000000000000000 / 0xA9E3CF41CAA3C = 0x3038 ( 10000+ private key has 10 char prefix match compressed address )
13zb1hQbWVs 11-char prefix match
0x20000000000000000 / 0x267D9CF4E7E91B2 = 0xd4 ( 200~250 private key has 11 char prefix match compressed address )
13zb1hQbWVsc 12-char prefix match
0x20000000000000000 / 0x8B8758F7C8AD0286 = 0x3 ( 3~4 private key has 12 char prefix match compressed address )