math
posted by kendra .
show that the sum of four consecutive whole numbers is divisible by 2

math 
Ms. Sue
3 + 4 + 5 + 6 = 18
18/2 = 9 
math 
Reiny
let the 4 numbers be
x, x+1, x+2, x+3 , where x is an integer.
x + x+1 + x+2 + x+3
= 4x + 6
= 2(x+3)
Any integer multiplied by 2 must be even
or
If any integer has a factor of 2, it must be even by definition. 
math 
kendra
The gcf(a,b) = 495 and lcm( a,b) =31,185 Find possible values of a and b if a is divisible by 35 and b is divisible by 81.

math  do not piggyback 
MathMate
Kendra,
piggybacking on other students' questions has two disadvantages:
1. Tutors do not get to see your post (as in the present case)
2. it slows down the other student's getting a response.
Your other post has been answered here:
http://www.jiskha.com/display.cgi?id=1322609635
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