Question

Find the smallest number of five digits that can be exactly divided by 60 90 and 80

Answer 1

Heya Friend!!

Here's ur answer:-

*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!!


@Altaf

Answer 2

Answer:

first we need to find the lcm of the numbers-60,80,90

the lcm statement is- 2×5×2×3×2=720

to find the number -

we need to divide 720÷10000= quotient is 13 and the reminder is 640

= 10000+(720-640)

= 10000+80

• the final answer is 10080