What is the closest square number to 9 999?

Answer 1

Oh, dude, the closest square number to 9,999 is 100 squared, which is 10,000. I mean, it's like almost there but not quite, you know? So, yeah, 10,000 is the square number just chilling next to 9,999.

Answer 2

The closest square number will be as close to 9999 as you like.

For example, 99.999 square = 9999.800001 (0.800001 away)

99.995 square = 9999.000025 (0.000025 away)

You could get closer still.

The nearest PERFECT square, however, is 10,000.