288
120
How about: 2*120 = 240
240
you can multiply by 2, or add 120, or divide by 1/2. I'd say it's best to multiply, or find the "product."
200 multiply 120% = 240
There are 240/2 = 120 of them
240+120=360.
240
240
The LCM is 240.
Prime factor each number and then multiply all the common factors to get the GCF.120=2x2x2x3x5240=2x2x2x2x3x52x2x2x3x5=120 is the Greatest Common Factor
Factors multiply. The same set of numbers won't add up to both 140 and 240, but 120 and 20 are factors of 240 that total 140.