Posted by **kendra** on Tuesday, November 29, 2011 at 5:33pm.

show that the sum of four consecutive whole numbers is divisible by 2

- math -
**Ms. Sue**, Tuesday, November 29, 2011 at 5:35pm
3 + 4 + 5 + 6 = 18

18/2 = 9

- math -
**Reiny**, Tuesday, November 29, 2011 at 5:58pm
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**, Tuesday, November 29, 2011 at 6:19pm
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 piggy-back -
**MathMate**, Tuesday, November 29, 2011 at 8:47pm
Kendra,

piggy-backing 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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