Question

Write the ten multiples of 7 and 9. What is their lowest common multiple?​

Answer 1

Answer:

LCM of 7 and 9 is the smallest number among all common multiples of 7 and 9. The first few multiples of 7 and 9 are (7, 14, 21, 28, 35, 42, . . . ) and (9, 18, 27, 36, 45, . . . ) respectively. There are 3 commonly used methods to find LCM of 7 and 9 - by listing multiples, by division method, and by prime factorization.