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Find the smallest number of 5 …

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Find the smallest number of 5 digits that can be exactly divided by 60 90 and 80
  • 1 answers

Yogita Ingle 5 years, 8 months ago

Firstly we find the LCM of 60,90 & 80

60:- 2 × 2 × 3 × 5

90:- 2 × 3 × 3 × 5

80:- 2 × 2 × 2 × 2 × 5

LCM= 720
Smallest Five digit number = 10000

Dividing this five digit number by 720.

we get,

720) 10000 ( 13
720
-_____
2800
2160
-_____
640

To find the number

=> 10000 + ( 720 - 640 )

=> 10000 + 80

=> 10080

So, 10080 is the number of five digit & the required number!!

 

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