5×7××9+7 is a composite number explain why
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30
Composite numbers -a whole number that can be divided by numbers other than 1 or itself . for eg:)9 can be divided by 3 (as well as 1 and 9) therefore 9 is a composite number .
It's given that-- 5×7×9+7
Multiplying 5×7×9
=315+7
322
Therefore 322 is divisible by 2 and 7 and hence 5×7×9+7 is a composite number
It's given that-- 5×7×9+7
Multiplying 5×7×9
=315+7
322
Therefore 322 is divisible by 2 and 7 and hence 5×7×9+7 is a composite number
Answered by
20
5×7×9+7
7(5×9+1)
7(45+1)
7(46)
7(2×23)
7×2×23
since the no. having three factor
hence the no. is composite.
7(5×9+1)
7(45+1)
7(46)
7(2×23)
7×2×23
since the no. having three factor
hence the no. is composite.
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