QID: 5. What is the unit digit of \[\left( 217 \right) ^{ 413 }\times \left( 819\right) ^{ 547}\times \left( 414 \right) ^{ 624 }\times \left( 342 \right) ^{ 812 } \]?
का ईकाई अंक क्या है?
A) 2 B) 4 C) 6 D) 8
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What is the unit digit of