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Q: What are least common multiples of 15 and 3?

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The LCM is 15.

3

15

15

15

i think it's 15.

That would be 15

It is: 45

Any multiple of the LCM (15) is common.

Only one can be least; that's 15. Other common multiples include 30 and 45.

The biggest common divisor of 9 and 15 is 3. To find the least common multiples of 9 an 15 you should multiply these numbers and divide the result by their biggest common divisor. 9x15/3=45

Since 15 is a multiple of 3, it is automatically the LCM.

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