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Uploaded by MrRockmath on May 5, 2009
I saw this on the web a while back. It is one of a handful of methods I know of that shows you how to determine if a number is divisible by 7. Enjoy.
Education
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1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7
0*7=0=1-1
1*7=7=10-3
14*7=98=100-2
142*7=994=1000-6
1428*7=9996=10000-4
14285*7=99995=100000-5
142857*7=999999=1000000-1
I think i understand how it works, but im not sure why its repetative.
WalterLarsLee 3 days ago
Aw man, I wish I had seen this video earlier. I like how you go step by step.
bigmackbygilette 2 years ago
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1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7
0*7=0=1-1
1*7=7=10-3
14*7=98=100-2
142*7=994=1000-6
1428*7=9996=10000-4
14285*7=99995=100000-5
142857*7=999999=1000000-1
I think i understand how it works, but im not sure why its repetative.
WalterLarsLee 3 days ago
Aw man, I wish I had seen this video earlier. I like how you go step by step.
bigmackbygilette 2 years ago