  There are some discrepancies in the results on energy spectrum from Yakutsk,
AGASA, and HiRes experiments. In this work differential energy spectrum of
primary cosmic rays based on the Yakutsk EAS Array data is presented. For the
largest events values of $S_{600}$ and axes coordinates have been obtained
using revised lateral distribution function. Simulation of converter's response
at large distances showed no considerable underestimation of particle density.
Complex shape of spectrum in region of $\E > 10^{17}$ eV is confirmed. After
adjustment of parameters and additional exposition at the Yakutsk array there
are three events with energy $\E > 10^{20}$ eV.
