find the one's digit of cube eg 3331
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We know that ,
1) If a number has 1 in the units place , then it's cube ends with 1.
example:
11³ = 1331
2) If a number has 2 in the units place , then it's cube ends with 8.
3) If a number has 3 in the units place , then it's cube ends with 7.
4) If a number has 4 in the units place , then it's cube ends with 4.
5) If a number has 5 in the units place , then it's cube ends with 5.
6) If a number has 6 in the units place , then it's cube ends with 6.
7) If a number has 7 in the units place , then it's cube ends with 3.
8) If a number has 8 in the units place , then it's cube ends with 2.
9) If a number has 2 in the units place , then it's cube ends with 9.
10) If a number has 2 in the units place , then it's cube ends with 0.
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