400 is a significant number because it is a square number as 20*20 = 400
Wiki User
∙ 9y agoThat depends to what number of figures you are rounding to. Rounded to one significant figure, 361 is approximately equal to 400. Rounded to two significant figures, this is equal to 360.
400 is a number
1 of them.
400
400
400
400
That depends to what number of figures you are rounding to. Rounded to one significant figure, 361 is approximately equal to 400. Rounded to two significant figures, this is equal to 360.
400.
400 is a number
400
400
1 of them.
what is a whole number for 400
400
There is only one number that equals 400. The number is 400, and it's not a prime number.
The least number that can be rounded to 400 (to the nearest 400) is 200.