1 x 255, 3 x 85, 5 x 51, 15 x 17, 17 x 15, 51 x 5, 85 x 3, 255 x 1
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You multiply the decimal value by 100: 255 x 100 = 25,500 %
The prime factorization of 255 is 3 x 5 x 17.
255
There are 100 centimeters in a meter so we must divide by 100. 255 divided by 100 is 2.55. So 255 centimeters is 2.55 meters.In general, the easy way to do this, is multiply by a fraction and let the units you no longer want cancel out. So we have cm and we want meters. We need to multiply by meters/centimeters.In this case that is 1/100. Multiplying by 1/100 is the same as dividing by 100.
Oh, dude, you want me to do math? Fine, fine. So, to find the percentage of 255 over 420, you just divide 255 by 420, which gives you approximately 0.6071. Then you multiply that by 100 to get the percentage, which is around 60.71%. There you go, math wizard in the house!