elementary math
posted by Bob .
when finding the factors for 841 what is the largest factor you would have to test?

elementary math 
DQR
The square root of 841. Why? Because if there's an X that's a factor of 841, then (841/X) must also be a factor  so if you know one then you know the other, which means that once you've investigated every possibility up to and including sqrt(841), i.e. 29, then you've also investigated all the viable possibilities above it.
Respond to this Question
Similar Questions

math please
what exactly is a prime factor would x5 x+5 and x2+25 all be prime factors of x4625? 
Math
1.3x^2+17x+10 2.5y^8125 3.a^22ab15b^2 *Please help me.You have to factor by completing. Let's look at #1: 3x^2 + 17x + 10 We have 2 and 5 as factors of the last term. What combinations can we do to arrive at the middle term? 
social factors
What are social factors? I have to answer the question what are social factors that can influence the results of a test? 
elementry math
When finding the factors of 841, what is the largest factor you would have to test? 
Math
I need some help with this problem. When finding the factors of 841, what is the largest factor you would have to test? 
math
How do the ideas of divisibility and multiples relate to the study of fractions? 
math
Lareina understands factors, but sometimes she has trouble finding all the factors of a number. What advice would you give to help her find all the factors of a number? 
math
Which number property shows that the two sides of the equation are equal? 
Math
Lareina understands factors, but sometimes she has trouble finding all the factors of a number. What advice would you give to help her find all the factors of a number? 
science help
Two factors which cause global climate change are listed below. Factor 1: Volcanic eruptions. Factor 2: Changes in the amount of Sun’s heat received by the Earth’s atmosphere and surface. Which of these statements is correct about …