math lovers? this for you...

[ahmed_indian]

:salam2:,

a person asked, "tell me a number, that if we divide it by any number from 1-10 the answer will always come in the form of a whole number and not as a fraction.'" other replied, "Take the number of days in a year and multiply it with the number of days in a week and you will have your answer.'
The person got astonished. He calculated the answer and to his amazement he came across the following results:

The number of Days in a Year = 360 (in Arabic Calendar)
The Number of Days in a Week = 7
The product of the two numbers = 2520

2520 divide by 1 = 2520
2520 divide by 2 = 1260
2520 divide by 3 = 840
2520 divide by 4 = 630
2520 divide by 5 = 504
2520 divide by 6 = 420
2520 divide by 7 = 360
2520 divide by 8 = 315
2520 divide by 9 = 280
2520 divide by 10= 252

 

[arzafar]

:salam2:

you know this is pretty useless.
if i re-ferame the original question as "find the least common multiple of 1,2,3,4,5,6,7,8,9,10" the answer would be 2520

heres is how
(2x2x2x3x3x5)x7= 2520.
=> 360x7 = 2520