Question

how to find whether a given number is a perfect cube?​

Answer 1

Answer:

In a perfect cube,

If the last digit is 5,then the last 3 digits number is always 125, 375, 625 or 875.

If the last digit number is 4 or 8,the 10's digit number is always an even number. (2^3=08,12^3=1728,22^3=10648,32^3=32768 and so on… ...

If the last digit number is 2 or 6,the 10's digit number is always an odd number

Answer 2

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In a perfect cube,

▪ If the last digit is 5,then the last 3 digits number is always 125, 375, 625 or 875.

▪ If the last digit number is 4 or 8,the 10's digit number is always an even number. (2^3=08,12^3=1728,22^3=10648,32^3=32768)

▪ If the last digit number is 2 or 6,the 10's digit number is always an odd number.

I hope its help for you ✨