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Q: What number when multipled by itself gives 400?

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The number is 20

Itself

The answer is 20.

88,400,000,000

20 x 20

400*25 = 10,000

One acre has 43,560 square feet. Divide the number of square feet by that and you get the number of acres. This gives you an answer of 3.67 acres.

Well, a square number is the answer to a number multiplied by itself. So, what you'd have to do is multiply 20*20, and the answer is 400.

449 Debatable whether 450 is 400 or 500 nearest

A prime number is divisible only by 1 or itself.

Any number can be multiplied by itself to create a result - in this case, 202 = 20 x 20 = 400.

18 and 19

NO. 400 is not prime.400 is a composite number because it is even so definitely it has other factors aside from 1 and itself which is 2.

A square number is an integer which is the square of some smaller integer. For example, 144 is square because 144 = 12*12 = 12^2 400 is a square number because 400 = 20^2. Anything bigger than 20, when multiplied by itself, will make a square greater than 400. How about 21?

The name gives you the number of miles. 160 laps/400 miles In 2008 the race was renamed, it's now known as the Coke Zero 400.

400 is a significant number because it is a square number as 20*20 = 400

400 is a composite number because it is divisible by more than two numbers. Because it ends in a 0, the divisibility rules indicate it is divisible by 2, 5, and 10. (It is also divisible by other numbers.) It is not a prime number because a prime number has exactly two factors, 1 and itself.

One acre has 43,560 square feet. Divide the number of square feet, 200,000, by that and you get the number of acres. This gives you an answer of 4.59 acres.

400 is a number

No because 400 is a rational number that can be expressed as a fraction in the form of 400/1

The least number that can be rounded to 400 (to the nearest 400) is 200.

440

There is only one number that equals 400. The number is 400, and it's not a prime number.

400

2.5 * 10^6. this is so coz 400 amino acids will be composed of 400 * 3 bases. hence divide 3*10^9 by 1200, this gives the above answer.

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