Question

find the lowest number by which 2646 would need to be multiplied by to give a cube number?​

Answer 1

Answer:

LCM of 2646

3×3×7×7×2×3

we observe that 2 and 3 have no more pair so we have to multiply 2646 by 2×3 to get a perfect square

2646×2×3=15876

√15876=2×3×3×7=126

so the smallest number is 6 and square root of 15876 is 126