These are the first 90 multiples of 7:714212835424956637077849198105112119126133140147154161168175182189196203210217224231238245152159266273280287294301308315322329336343350357364371378385392399406413420427434441448455462469476483490497504511518525532539546553560567574581588595602609616623630
The only Least Common Multiple (LCM) for 120 90 is 360.
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...
30, 60, 90, 120, 150, 180.
30, 60, 90, 120, 150 and so on.
Multiples of 18: {18, 36, 54, 72, 90...}Multiples of 30: {30, 60, 90, 120, 150...}Therefore the LCM is 90.
Multiples of 30: 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360, 390, 420, 450 and so on....
Multiples of 20 include 20, 40, 60, 80, 100, 120, and so on Multiples of 90 include 90, 180, 270, 360, 450, 540, 630, and so on. Common multiples of 20 and 90 include any multiple of 180.
30, 60, 90, 120, 150.
30, 60, 90, 120, 150.
40 and 120, yes. The rest, no.
30, 60, 90, 120, 150, ...