factors and multiples

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kushal.adhia: Senior | Next Rank: 100 Posts; Posts: 80; Joined: Thu Aug 12, 2010 11:47 pm; Location: chennai, india; Thanked: 2 times

factors and multiples

by kushal.adhia » Tue Oct 05, 2010 4:50 am

Hi guys

I seem to having loads of trouble with questions involving factors and multiples... for some reason, i can't seem to remember the difference between factors and multiples while practicing sums from the OG or even otherwise.

Can anyone help by giving a few tips on how to solve these kinds of sums..

thanks

Kush

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Source: Beat The GMAT — GMAT Strategy | Tue Oct 05, 2010 4:50 am

niksworth: Legendary Member; Posts: 520; Joined: Mon Jun 14, 2010 10:44 am; Thanked: 70 times; Followed by:6 members

by niksworth » Tue Oct 05, 2010 6:22 am

Check out the Manhattan Number Properties guide. It is a great resource and will help you to solve this problem.

scio me nihil scire

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tlt2372: Senior | Next Rank: 100 Posts; Posts: 48; Joined: Sun Jul 20, 2008 4:45 pm; Location: Tallahassee, FL; Thanked: 2 times

by tlt2372 » Tue Oct 05, 2010 9:19 am

kushal.adhia wrote:Hi guys

I seem to having loads of trouble with questions involving factors and multiples... for some reason, i can't seem to remember the difference between factors and multiples while practicing sums from the OG or even otherwise.

Can anyone help by giving a few tips on how to solve these kinds of sums..

thanks

Kush

Hi Kush,
I used to have this same problem! I read the Mgmat Number properties book and it really helped. Basically, factors and multiples are opposites. If you think about a factor tree, factors will always go under the tree while multiples will aways go on the top of the tree.

For example, if you are drawing a factor tree of the number 6. THe number three, a factor will alway go under the tree, while the number 12, a multiple, will go on top of the tree.

I think it helps to visualize it.

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kushal.adhia: Senior | Next Rank: 100 Posts; Posts: 80; Joined: Thu Aug 12, 2010 11:47 pm; Location: chennai, india; Thanked: 2 times