What would be the quickest method to estimate (i.e to the nearest integer) the value of ?

If 89 has a factor of 3 it wouldn't be too bad but given that its a prime this question seems a little difficult.

thx

Printable View

- May 7th 2011, 06:12 AMdumluckFinding the value of a square root
What would be the quickest method to estimate (i.e to the nearest integer) the value of ?

If 89 has a factor of 3 it wouldn't be too bad but given that its a prime this question seems a little difficult.

thx - May 7th 2011, 06:34 AMCaptainBlack
- May 7th 2011, 07:02 AMWilmer
For a really "rough" estimate:

sqrt(100) = 10

sqrt(81) = 9

10 > sqrt(89) > 9 ; get my drift? - May 7th 2011, 07:10 AMdumluck
- May 7th 2011, 07:22 AMdumluck
Ok I think I have it 4.4.4 = 64 5.5.5 = 125 therefore it is between -4 and -5.

- May 7th 2011, 08:20 AMCaptainBlack
- May 7th 2011, 08:37 AMHallsofIvy