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# What is the least common multiples of 7 and 9?

Updated: 10/27/2022

Wiki User

12y ago

The lowest common multiple of 7 and 9 is 63.

Here's how to work it out:

Multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...

Multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ...

To find the lowest common multiple you look and find the smallest number that is a multiple of both numbers (in your case 7 and 9). So, in this case the lowest multiple they both have in common is 63.
63
79
63

The Least Common Multiple (LCM) for 7 9 is 63.

Wiki User

8y ago

Wiki User

13y ago

7 and 9 have no common factors (7 is a Prime number, and 9 is not a multiple of 7). Therefore, the smallest common multiple is the product of both.

Wiki User

13y ago

63 is the LCM of 9 and 7.

Wiki User

13y ago

LCM(9, 7) = 63

Wiki User

12y ago

The least common multiple is 63.

Anonymous

Lvl 1
4y ago

63

Earn +20 pts
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