Question

2. Show that 392 is not a
perfect cube​

Answer 1

Answer:

1-lcm

2-2×2×2×43

392 is perfect cube of 86

Answer 2

Answer:

392 is not a perfect cube

To make it a cube we need one more 7,in that case 392×7=2×2×2×7×7×7=2744,which is a

perfect cube.

Hence the smallest natural number by which 392 should be multiplied to make a perfect cube is 7.