What can equal 81?

Factors of 81 in pairs are (1, 81), (3, 27), and (9, 9).

What numbers can equal to 81?

81 = 1 x 81, 3 x 27, or 9 x 9. Factors of 81: 1, 3, 9, 27, 81. Prime factorization: 81 = 3 x 3 x 3 x 3 which can also be written 3⁴. Since √81 = 9, a whole number, 81 is a perfect square.

How do you find the factors of 81?

What are the multiples of 81?

The first 5 multiples of 81 are 81, 162, 243, 324, 405. The sum of the first 5 multiples of 81 is 1215 and the average of the first 5 multiples of 81 is 243. Multiples of 81: 81, 162, 243, 324, 405, 486, 567, 648, 729, 810 and so on.

How do you do 81 divided by 3?

The result of division of 81÷3 81 ÷ 3 is 27 .

Factors of 81

What are all the square roots of 81?

√81 = 3×3 = 9. Hence, the value of the square root of 81 is 9.

What is 81 cube root?

What is the Cube Root of 81? The cube root of 81 is the number which when multiplied by itself three times gives the product as 81. Since 81 can be expressed as 3 × 3 × 3 × 3. Therefore, the cube root of 81 = ∛(3 × 3 × 3 × 3) = 4.3267.

Are there two square roots of 81?

Explanation: 81=9⋅9 then the square root of √81=9 . Because the double multiplication for the same sign is always positive, the square root is also valid with the other sign 81=(−9)⋅(−9) then √81=−9 and we can say that √81=±9 .

Is 81 perfect square?

Informally: When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.

What is the remainder of 81 divided by 2?

The result of division of 81÷2 81 ÷ 2 is 40 with a remainder of 1 .

What is the remainder of 81 divided by 8?

The quotient (integer division) of 81/8 equals 10; the remainder (“left over”) is 1. 81 is the dividend, and 8 is the divisor.

What is the remainder of 81 divided by 6?

Extra calculations for you

Using a calculator, if you typed in 81 divided by 6, you'd get 13.5. You could also express 81/6 as a mixed fraction: 13 3/6.

What is the GCF of 81?

Answer: Factors of 81 are 1, 3, 9, 27, 81. There are 5 integers that are factors of 81. The greatest factor of 81 is 81.

How do you divide 81 divided by 9?

Using a calculator, if you typed in 81 divided by 9, you'd get 9. You could also express 81/9 as a mixed fraction: 9 0/9. If you look at the mixed fraction 9 0/9, you'll see that the numerator is the same as the remainder (0), the denominator is our original divisor (9), and the whole number is our final answer (9).

What is the quotient of 81 divided by 7?

What is the Quotient and Remainder of 81 Divided by 7? The quotient (integer division) of 81/7 equals 11; the remainder (“left over”) is 4. 81 is the dividend, and 7 is the divisor.

What is the quotient of 81 and 3?

What is the Quotient and Remainder of 81 Divided by 3? The quotient (integer division) of 81/3 equals 27; the remainder (“left over”) is 0. 81 is the dividend, and 3 is the divisor.

How can we divide 81 by 2?

What does divided by look like?

The division sign resembles a dash or double dash with a dot above and a dot below (÷). It is equivalent to the words "divided by." This symbol is found mainly in arithmetic texts at the elementary-school level.

How do you solve 9 divided by 2?

What is the Quotient and Remainder of 9 Divided by 2? The quotient (integer division) of 9/2 equals 4; the remainder (“left over”) is 1. 9 is the dividend, and 2 is the divisor.

Is 81 a whole number?

Answer and Explanation: The square root of 81 is 9. This means that the square root of 81 is a rational number.

How is 81 a square number?

81 is a perfect square. Because 9 * 9 = 81.