That doesn't factor neatly. Applying the quadratic formula, we find two imaginary solutions: 1 plus or minus i times the square root of 3.
x = 1 + 1.7320508075688772i
x = 1 - 1.7320508075688772i
where i is the square root of negative one.
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the factor rainbow of 4 is 1,2,4
Yes, because 4 times 5 equals 20. So 4 is a factor of 20.
If the number can be divided by 4 exactly then 4 is a factor. No matter how long the number is, if the last two digits of the number are divisible by 4, then 4 is a factor of the number. Conversely, if the last two digits are not divisible by 4, then 4 is not a factor.
The greatest common factor of 4 and 32 is 4
The greatest common factor of 4 and 64 is 4.