LCM for 60 and 80

What's the Least Common Multiple (LCM) of 60 and 80?

Answer: LCM of 60 and 80 is 240

(Two hundred forty)

Finding LCM for 60 and 80 using GCF's of these numbers

The first method to find LCM for numbers 60 and 80 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 60 and 80 is 20, so

LCM = (60 × 80) ÷ 20

LCM = 4800 ÷ 20

LCM = 240

Finding LCM for 60 and 80 by Listing Multiples

The second method to find LCM for numbers 60 and 80 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 60: 60, 120, 180, 240, 300, 360

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

So the LCM for 60 and 80 is 240

Finding LCM for 60 and 80 by Prime Factorization

Another method to find LCM for numbers 60 and 80 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 60: 2, 2, 3, 5 (exponent form: 22, 31, 51)

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

24 × 31 × 51 = 240

See Also

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 60 and 80? (The answer is: 240). Select the first number (e.g. '60') and the second number (e.g. '80'). 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

LCM Table

Number 1Number 2LCM
4580720
46801840
47803760
4880
49803920
5080
51804080
52801040
53804240
54802160
5580880
5680560
57804560
58802320
59804720
6080
61804880
62802480
63805040
6480
65801040
66802640
67805360
68801360
69805520
7080
71805680
7280
73805840
74802960

FAQ

What's the Least Common Multiple (LCM) of 60 and 80?

LCM of 60 and 80 is 240