lcm 15,20

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

simplify solve for inverse tangent line

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lcm 15, 20

Solution

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Solve using prime factors

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15, 20

Least Common Multiplier (LCM)

The LCM of a, b is the smallest positive number that is divisible by both a and b

Prime factorization of 15: 3· 5

Prime factorization of 20: 2· 2· 5

Multiply each factor the greatest number of times it occurs in either 15 or 20

=3· 5· 2· 2

Multiply the numbers: 3· 5· 2· 2=60

=60

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Notebook

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

lcm 15,20

Solution

Solution steps

Number Line