A top quark mass measurement is performed using 35.9{,text {fb}^{-1}} of LHC proton–proton collision data collected with the CMS detector at sqrt{s}=13,text {TeV} . The measurement uses the {mathrm {t}overline{mathrm {t}}} all-jets final state. A kinematic fit is performed to reconstruct the decay of the {mathrm {t}overline{mathrm {t}}} system and suppress the multijet background. Using the ideogram method, the top quark mass (m_{mathrm {t}}) is determined, simultaneously constraining an additional jet energy scale factor (text {JSF}). The resulting value of m_{mathrm {t}} =172.34pm 0.20,text {(stat+JSF)} pm 0.70,text {(syst)} ,text {GeV} is in good agreement with previous measurements. In addition, a combined measurement that uses the {mathrm {t}overline{mathrm {t}}} lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an m_{mathrm {t}} measurement of 172.26pm 0.07,text {(stat+JSF)} pm 0.61,text {(syst)} ,text {GeV} . This is the first combined m_{mathrm {t}} extraction from the lepton+jets and all-jets channels through a single likelihood function.