What is the Lowest Commen Multiple of 3 and 67? Help by tommorw please??!!

Just multiply them together and the product is your LCM.

Guest 1 is right for THIS example, but that is NOT the way to ALWAYS do it.

For larger numbers you'll need to break each number down to its  prime factors that multiply together to make up the number, then take the unique factors  factors and multiply them together to get your answer.

Example      6  and 16    You COULD multiply them together to get A COMMON multiple but not THE LCM

6 x 16= 96

Now by breaking them down:

6 = 3 x 2

16 = 2 x 2 x 2 x 2            from this list you can see  3,2  are unique (for 6)  and 2,2,2 are unique for 16 (You already have one '2' from the first list)

Multiply these numbers together :   3 x 2 x 2 x 2 x 2 = 48   ==== LCM

Now for YOUR example, multiplying them together works ONLY because they are BOTH already PRIME numbers

3 = 3 x 1

67 = 67 x 1       3,1   and 67      3 x 1 x 67 =201