Starting with 120, each number is half the previous one.
15, 30, 45, 60, 75, 90, 105, 120,135,15015, 30, 45, 60, 75, 90, 105, 120, 135, 150.
30, 60, 90, 120, 150, 180, 210, 240 +30 . . .
The greatest common factor of the numbers 1,830 and 60 is 30.
This doesn't work. The LCM of a pair of numbers has to be equal to or larger than the largest number of the pair. If one of the numbers is 60, the other is 120. 60 and 120 have a GCF of 60, not an LCM.
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300.12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240.
The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...
10 The sequence is given by xn = 60/n
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, . . .
15, 30, 45, 60, 75, 90, 105, 120,135,15015, 30, 45, 60, 75, 90, 105, 120, 135, 150.
30, 60, 90, 120, 150, 180 . . .
Yes: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, . . .
15 30 40 60 i believe that to be it
10. (Don't ask why.)
30, 60, 90, 120, 150, 180, 210, 240 +30 . . .
15, 30, 45, 60, 75, 90, 105, 120, 135.
One common multiple of 15 and 30 is 60. Want another? 120
The greatest common factor of the numbers 1,830 and 60 is 30.