function latestAnswer()
        public
        view
        returns (uint256)
    {
        return priceFeedPendleLpOracle.latestAnswer()
            * pendleChildToken.totalLpAssets()
            * PRECISION_FACTOR_E18
            / pendleChildToken.totalSupply()
            / PRECISION_FACTOR_E18;
    }
> 2**256 / (1e18*1000000e18*1e18)
115792089237316180
