You can use a calculator to get its decimal value: 28.6356. Or you can simplify it by finding numbers that are factors of 820 that are squares ... 4 x 205 = 820 and so √820 = √4 x √205 = 2√205.
If you mean .820 then it is 0.91 rounded to the nearest hundredth
Any Windows calculator would have told you - 28.63564212 is the answer
The prime factors are the factors of its square root, each one appearing twice as often.
No there is not. If you are looking for prime factors of a number and you get to the square root of that number you can stop. Yes, there is. If an integer is not itself a prime, then one of its factors will be less or equal to its square root and the "co-factor" will be greater than or equal to the square root. But both cannot be greater than the square root so, when searching for factors, you can stop when you reach the square root.
"Factors come in pairs, so this is impossible." This statement is false. A number can have an odd number of factors by having the square root as one of the factors. Find a number with 12 factors and a square root.
The square root
The square root of a number is equal to the product of the roots of two factors of that number. -247 can be written as -1x247. The square root of -1 is i. The square root of 247 is approximately 15.716. Thus, the square root of -247 is 15.716i
Look for square numbers that are factors of 540, like 36. The square root of 540 = 6 times the square root of 15.
The median of the factors of any square number is its square root, in this case, 4.
You look for a perfect square among its factors; if you factor it into prime factors, you would look for a repeated prime factor. Then you take that factor out of the root sign (taking the square root of it, while you do it).
simplest form is just the square root of 10 because there are no perfect square factors of 10
1860 factors to the prime numbers 2x2x3x5x31 so its square root cannot be a rational number. The square root is approximately 43.12271731.
The positive integer factors of 820 are: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
To simplify a root, you need to be aware that the root of ab is the same as the root of a multiplied by the root of b. To simplify we need to find the prime factors of the number and identify any repeated factors. In this case, we have 850, which is expressed as 2x5x5x17. The 5 comes twice, and so we can divide by 25 to give 34. There are no more repeated factors. Therefore the square root of 850 is 5 the square root of 34.
A square root is two equal factors of a number. For instance, the square root of 49 would be 7 because 7*7=49 and the square root of 16 is 4 because 4*4=16.
if the factors are equal the the number must be a square so the factor is the square root.
The idea is to find a perfect square among its factors, such as two square, three square, etc. In this case, the square root of 68, root(68), equals root(4 x 17) = root(4) x root(17) = 2 root(17).
The square root of 202 equals 14.213 or the square root of 202 (only factors of 202 are 202, 101, 2 and 1)
Since 820 is a factor of 16400, all of its factors are common.
The square root of 15 is simply root 15, since neither 3 nor 5, 15's only factors, have square roots.