What is the LCM of 42 and 48?

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What's the Least Common Multiple (LCM) of 42 and 48?

Answer: LCM of 42 and 48 is 336

(Three hundred thirty-six)

Finding LCM for 42 and 48 using GCF's of these numbers

The first method to find LCM for numbers 42 and 48 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 42 and 48 is 6, so

LCM = (42 × 48) ÷ 6

LCM = 2016 ÷ 6

LCM = 336

Finding LCM for 42 and 48 by Listing Multiples

The second method to find LCM for numbers 42 and 48 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 42: 42, 84, 126, 168, 210, 252, 294, 336, 378, 420

Multiples of 48: 48, 96, 144, 192, 240, 288, 336, 384, 432

So the LCM for 42 and 48 is 336

Finding LCM for 42 and 48 by Prime Factorization

Another method to find LCM for numbers 42 and 48 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 42: 2, 3, 7 (exponent form: 2¹, 3¹, 7¹)

All Prime Factors of 48: 2, 2, 2, 2, 3 (exponent form: 2⁴, 3¹)

2⁴ × 3¹ × 7¹ = 336

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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 42 and 48? (The answer is: 336). Select the first number (e.g. '42') and the second number (e.g. '48'). 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

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LCM Table

Number 1	Number 2	LCM
27	48	432
28	48	336
29	48	1392
30	48	240
31	48	1488
32	48	96
33	48	528
34	48	816
35	48	1680
36	48	144
37	48	1776
38	48	912
39	48	624
40	48	240
41	48	1968
42	48	336
43	48	2064
44	48	528
45	48	720
46	48	1104
47	48	2256
48	48	48
49	48	2352
50	48	1200
51	48	816
52	48	624
53	48	2544
54	48	432
55	48	2640
56	48	336

LCM for 42 and 48

"Least Common Multiple" Calculator

What's the Least Common Multiple (LCM) of 42 and 48?

Finding LCM for 42 and 48 using GCF's of these numbers

Finding LCM for 42 and 48 by Listing Multiples

Finding LCM for 42 and 48 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 42 and 48?

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