Question

which number equals the square root of 1377?
51
3 times the square root of 17
17 times the square root of 3
9 times the square root of 17

Answer 1

last one

Answer 2

1377/3 = 459
459/3 = 153
153/3 = 51
51/3 = 17

So, the factors are 3^4 * 17. Square root of that must be 9 times square root of 17.

Answer 3

sqrt1377 =sqrt(81*17)=sqrt(9*9*17)=9sqrt17