How do you simplify 4205?

1 Answer
Feb 14, 2016

=295

Explanation:

Let's find out factors of the given number 4205

  1. Since there is 5 in the units place, 5 must be a factor.
    4205=5×841
  2. To find factors of 841, we observe 1 in the unit's place. So the factor could have either 1 or 9 in its units place.
    Possible factors are 11, 19, 21, 29. By trial and error we find that 29 is a factor.
    4205=5×29×29

Now the question becomes
4205=5×29×29

Taking 29 out of the square root sign

=295