Close Factor

The percent, ranging from 0% to 100%, of a liquidatable account's borrow that can be repaid in a single liquidate transaction. If a user has multiple borrowed assets, the closeFactor applies to any single borrowed asset, not the aggregated value of a user’s outstanding borrowing.


function closeFactorMantissa() view returns (uint)
  • RETURN: The closeFactor, scaled by 1e18, is multiplied by an outstanding borrow balance to determine how much could be closed.


Comptroller troll = Comptroller(0xABCD...);
uint closeFactor = troll.closeFactorMantissa();

Web3 1.0

const troll =;
const closeFactor = await troll.methods.closeFactoreMantissa().call();

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