504 and 2520 have a special mention in the number world and this can be found out if we just Google
But there is more to these numbers
504 is the smallest number which has factors from 1 to 9
2520 is the smallest number which has factors from 1 to 10
Now 504 = 2 ^ 9 - 2 ^ 3 (512 - 8). Notice the base - 2 which plays a prominent role in this calculation
Look at this - 2 ^ 9 + 2 ^ 3 = 520. Prefix the number 2 to 520 and you get 2520 :)
But there is more to these numbers
504 is the smallest number which has factors from 1 to 9
2520 is the smallest number which has factors from 1 to 10
Now 504 = 2 ^ 9 - 2 ^ 3 (512 - 8). Notice the base - 2 which plays a prominent role in this calculation
Look at this - 2 ^ 9 + 2 ^ 3 = 520. Prefix the number 2 to 520 and you get 2520 :)
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