Question

I am a 3 -digit number which is a square number as well as a cube number. Who am I?

HOPING AT LEAST 1 PERSON WHO COME AND SOLVE THIS CORRECTLY :( AND NO SPAMMER

Answer 1

Answer:

729 is a number which is also square and cube. okay

Answer 2

Answer:

mark me anls brainlist answer ☺️

Step-by-step explanation:

You know that all the squares are equals to 0,1,2 or 4 mod 7 because:

02=0(mod7)

12=1(mod7)

22=4(mod7)

32=2(mod7)

42=2(mod7)

52=4(mod7)

62=1(mod7).

And all the cubes are equals to 0,1 or 6 mod 7 because:

03=0(mod7)

13=1(mod7)

23=1(mod7)

33=6(mod7)

43=1(mod7)

53=6(mod7)

63=6(mod7).

So if your number is a square and a cube at the same time, then it is necessarily equal to 0 or 1 mod 7.