Ta có:
$3^{5371} = 3^{1342.4}.3^3 = (\dots \dots 1).27 = (\dots \dots 7)$
$57^{206} = 57^{204.4}.57^2 = (\dots \dots 1).(\dots \dots 9) = (\dots \dots 9)$
$92^{2017} = 92^{504.4}.92 = (\dots \dots 6).92 = (\dots \dots 2)$
Do đó:
$3^{5371} + 57^{206} + 92^{2017} = (\dots \dots 8) \quad \not\vdots \quad 10$