4030 since they are relativity prime.
310 + 13 = 323
LCD(7,9,13) = 7*9*13 which is 819
LCD(13, 16) = 208
The LCD of 13, 14 and 15 is 2730 The LCD of 1/3, 1/4 and 1/5 is 60
1920 - 12 - 310 = 1,598
LCD(21, 13, 14, 15) = 2730
The least common divisor (LCD) of 8 and 13 is 104.
275 to 310 is approximately a 13% increase.
Since 13 is prime and 18=2*3*3, the LCD would be 2*3*3*13, or 234
143
195
2431