What is the LCM of 20 and 12?

"Least Common Multiple" Calculator

What's the Least Common Multiple (LCM) of 20 and 12?

Answer: LCM of 20 and 12 is 60

(Sixty)

Finding LCM for 20 and 12 using GCF's of these numbers

The first method to find LCM for numbers 20 and 12 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 20 and 12 is 4, so

LCM = (20 × 12) ÷ 4

LCM = 240 ÷ 4

LCM = 60

Finding LCM for 20 and 12 by Listing Multiples

The second method to find LCM for numbers 20 and 12 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 20: 20, 40, 60, 80, 100

Multiples of 12: 12, 24, 36, 48, 60, 72, 84

So the LCM for 20 and 12 is 60

Finding LCM for 20 and 12 by Prime Factorization

Another method to find LCM for numbers 20 and 12 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 20: 2, 2, 5 (exponent form: 2², 5¹)

All Prime Factors of 12: 2, 2, 3 (exponent form: 2², 3¹)

2² × 5¹ × 3¹ = 60

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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 20 and 12? (The answer is: 60). Select the first number (e.g. '20') and the second number (e.g. '12'). 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

LCM Table

Number 1	Number 2	LCM
5	12	60
6	12	12
7	12	84
8	12	24
9	12	36
10	12	60
11	12	132
12	12	12
13	12	156
14	12	84
15	12	60
16	12	48
17	12	204
18	12	36
19	12	228
20	12	60
21	12	84
22	12	132
23	12	276
24	12	24
25	12	300
26	12	156
27	12	108
28	12	84
29	12	348
30	12	60
31	12	372
32	12	96
33	12	132
34	12	204

LCM for 20 and 12

"Least Common Multiple" Calculator

What's the Least Common Multiple (LCM) of 20 and 12?

Finding LCM for 20 and 12 using GCF's of these numbers

Finding LCM for 20 and 12 by Listing Multiples

Finding LCM for 20 and 12 by Prime Factorization

Related Calculations

See Also

About "Least Common Multiple" Calculator

"Least Common Multiple" Calculator

LCM Table

FAQ

What's the Least Common Multiple (LCM) of 20 and 12?

See Also

Number 1	Number 2	LCM
5	12	60
6	12	12
7	12	84
8	12	24
9	12	36
10	12	60
11	12	132
12	12	12
13	12	156
14	12	84
15	12	60
16	12	48
17	12	204
18	12	36
19	12	228
20	12	60
21	12	84
22	12	132
23	12	276
24	12	24
25	12	300
26	12	156
27	12	108
28	12	84
29	12	348
30	12	60
31	12	372
32	12	96
33	12	132
34	12	204

Number 1	Number 2	LCM
5	12	60
6	12	12
7	12	84
8	12	24
9	12	36
10	12	60
11	12	132
12	12	12
13	12	156
14	12	84
15	12	60
16	12	48
17	12	204
18	12	36
19	12	228
20	12	60
21	12	84
22	12	132
23	12	276
24	12	24
25	12	300
26	12	156
27	12	108
28	12	84
29	12	348
30	12	60
31	12	372
32	12	96
33	12	132
34	12	204

Number 1	Number 2	LCM
5	12	60
6	12	12
7	12	84
8	12	24
9	12	36
10	12	60
11	12	132
12	12	12
13	12	156
14	12	84
15	12	60
16	12	48
17	12	204
18	12	36
19	12	228
20	12	60
21	12	84
22	12	132
23	12	276
24	12	24
25	12	300
26	12	156
27	12	108
28	12	84
29	12	348
30	12	60
31	12	372
32	12	96
33	12	132
34	12	204