The digit in the unit’s place of the product (2464)1793

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The digit in the unit’s place of the product (2464)¹⁷⁹³ × (615)³¹⁷ × (131)⁴⁹¹ is

1. 0
2. 2
3. 3
4. 5

Correct Option: A

(4)^2m gives 6 at unit digit.
(4)^{2m +1} gives 4 at unit digit.
(5)ⁿ gives 5 at unit place.
The same is the case with 1.
∴ Required digit = Unit’s digit in the product of 4× 5 × 1 = 0