Back to HomeDeployer 0x6b4971...1b2bad Deployment Block 48,827 Deployment Date Aug 7, 2015, 04:06 PM Code Size 171.0 B Gas at Deploy 61,181
Deployed August 7, 2015 (10 years ago)Block 48,827
PrimeChecker contract. Identical bytecode to 0x66d796e7 -- smallestfactor(uint256) returns the smallest prime factor, or n if prime. Deployed Aug 7, 2015 by the
Frontier EraVerified Source
Key Facts
Transactions by Year
20261
Deployment Transaction: 0x5745c4c749634039...4183edd38e963349
Source Verified
SolidityExact bytecode match(171 bytes)
Compiler: v0.1.1+
154 bytes. Identical bytecode to PrimeChecker 0x66d796e7. soljson v0.1.1, optimizer OFF. smallestfactor(uint256) returns first factor or n if prime. Same deployer (0x6B4971F5) also deployed PrimeChecker on Aug 7 2015.
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Detected Type: Unknown
Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Block span: 0 — 1,149,999
July 30, 2015 — March 14, 2016
Bytecode Overview
Opcodes171
Unique Opcodes40
Jump Instructions12
Storage Operations2
Verified Source Available
Source verified through compiler archaeology and exact bytecode matching.
View Verification ProofShow source code (Solidity)
contract PrimeChecker {
function smallestfactor(uint256 n) returns (uint256) {
for (uint256 i = 2; i * i <= n; i++) {
if (n % i == 0) return i;
}
return n;
}
}