PROBLEM:

• Find the lowest common multiple (LCM)

===============================

ANSWERS:

9. LCM of 10, 19:

Multiples of 10:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210

Multiples of 19:

19, 38, 57, 76, 95, 114, 133, 152, 171, 190, 209, 228

Therefore,

LCM(10, 19) = 190

10. LCM of 14, 28:

Multiples of 14:

14, 28, 42, 56

Multiples of 28:

28, 56, 84

Therefore,  

LCM(14, 28) = 28

11. LCM of 7, 3:

Multiples of 3:

3, 6, 9, 12, 15, 18, 21, 24, 27

Multiples of 7:

7, 14, 21, 28, 35

Therefore,  

LCM(3, 7) = 21

12. LCM of 4, 29:

Multiples of 4:

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124

Multiples of 29:

29, 58, 87, 116, 145, 174

Therefore,  

LCM(4, 29) = 116

13. LCM of 19, 9:

Multiples of 9:

9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180, 189

Multiples of 19:

19, 38, 57, 76, 95, 114, 133, 152, 171, 190, 209

Therefore,  

LCM(9, 19) = 171

14. LCM of 9, 11:

Multiples of 9:

9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117

Multiples of 11:

11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121

Therefore,  

LCM(9, 11) = 99

==============================

#CarryonLearning