I_Like_Maths
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Report Thread starter 6 years ago
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Find the sum of all the intergers between 1 and 1000 which are divisible by 7.

So I think that a = 7 and d = 7

but i'm not sure what formula to plug any of this into :/
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Kevin De Bruyne
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Report 6 years ago
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(Original post by I_Like_Maths)
Find the sum of all the intergers between 1 and 1000 which are divisible by 7.

So I think that a = 7 and d = 7

but i'm not sure what formula to plug any of this into :/
Sounds good

How many terms will there be? What will be the last term?

That should help you to use the sum of such a series.
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