To work out the LCM, you need two numbers. You have provided only one so you can't work out the LCM.
The LCM of one number is itself.
LCM of two numbers = their product divided by their HCF. The HCF of 64 and 610 is only 2 so the LCM is 64 x 610/2 ie 19520.
1220
You need at least two numbers to find an LCM. If that's 6 and 10, the LCM is 30.
The LCM of the given two numbers is 3660
The Least Common Multiple (LCM) of (610,15) is 1830.
610
20% of 610 = 20% * 610 = 0.2 * 610 = 122
610
To express 610 as a percentage, you would divide 610 by the total possible value (which is typically 100) and then multiply by 100. So, 610 divided by 100 equals 6.1, and when multiplied by 100, you get 610%. Therefore, 610 is equivalent to 610% when expressed as a percentage.
610
DCX (500+100+10 = 610)