LCM for 80 and 120

"Least Common Multiple" Calculator

Least Common Multiple of

and

What's the Least Common Multiple (LCM) of 80 and 120?

Answer: LCM of 80 and 120 is 240

(Two hundred forty)

Finding LCM for 80 and 120 using GCF's of these numbers

The first method to find LCM for numbers 80 and 120 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 80 and 120 is 40, so

LCM = (80 × 120) ÷ 40

LCM = 9600 ÷ 40

LCM = 240

Finding LCM for 80 and 120 by Listing Multiples

The second method to find LCM for numbers 80 and 120 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 80: 80, 160, 240, 320, 400

Multiples of 120: 120, 240, 360, 480

So the LCM for 80 and 120 is 240

Finding LCM for 80 and 120 by Prime Factorization

Another method to find LCM for numbers 80 and 120 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 80: 2, 2, 2, 2, 5 (exponent form: 24, 51)

All Prime Factors of 120: 2, 2, 2, 3, 5 (exponent form: 23, 31, 51)

24 × 51 × 31 = 240

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About "Least Common Multiple" Calculator

This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 80 and 120? (The answer is: 240). Select the first number (e.g. '80') and the second number (e.g. '120'). After that hit the 'Calculate' button.
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers

"Least Common Multiple" Calculator

Least Common Multiple of

and

LCM Table

Number 1Number 2LCM
651201560
661201320
671208040
681202040
691202760
70120840
711208520
72120360
731208760
741204440
75120600
761202280
771209240
781201560
791209480
80120240
811203240
821204920
831209960
84120840
851202040
861205160
871203480
881201320
8912010680
90120360
9112010920
921202760
931203720
941205640

FAQ

What's the Least Common Multiple (LCM) of 80 and 120?

LCM of 80 and 120 is 240

See Also