The first 3 multiples of 7 are: 7, 14, and 21.
7,14,21,28,35
5 + 10+15+20=50 ans
Common multiples of 7 and 5 include 35, 70, 140, etc.
the next 5 multiples of 7 are: 14,21,28,35,42 and if you don't know the rest they are 49,56,63,70,77 and 84
The first 3 multiples of 7 are: 7, 14, and 21.
7,14,21,28,35
The first four multiples of five: 5, 10, 15, 20
7, 14, 21, 28, 35
35 and 70
35, 70, 105, etc.
5 + 10+15+20=50 ans
The first common multiple of 3 4 5 and 7 is 420.
These are the first 90 multiples of 7:714212835424956637077849198105112119126133140147154161168175182189196203210217224231238245152159266273280287294301308315322329336343350357364371378385392399406413420427434441448455462469476483490497504511518525532539546553560567574581588595602609616623630
35, 70, 105
35, 70, 105
Example: 5 and 7 List the multiples of 5. 5, 10, 15, 20, 25, 30, 35, 40... List the multiples of 7. 7, 14, 21, 28, 35, 42... The LCM is the first number that appears on both lists.