Question

by what least number should 2156 multiplied to get a perfect square

Answer 1

2156=2*2*7*7*11
so it should be multiplied by 11 in order to get a perfect square

Answer 2

Answer:

2156 =

prime factorization

2. 2156

2 1078

7. 539

7. 77

11. 7

so, 2²x 3²x 11

then, the least no. multiplied by 2156 to get a perfect square = 11 answer