LCM for 40 and 384

What's the Least Common Multiple (LCM) of 40 and 384?

Answer: LCM of 40 and 384 is 1,920

(One thousand, nine hundred twenty)

Finding LCM for 40 and 384 using GCF's of these numbers

The first method to find LCM for numbers 40 and 384 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 40 and 384 is 8, so

LCM = (40 × 384) ÷ 8

LCM = 15360 ÷ 8

LCM = 1920

Finding LCM for 40 and 384 by Listing Multiples

The second method to find LCM for numbers 40 and 384 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 40: 40, 80, 120, 160, 200, 240, 280, 320, 360, 400, 440, 480, 520, 560, 600, 640, 680, 720, 760, 800, 840, 880, 920, 960, 1000, 1040, 1080, 1120, 1160, 1200, 1240, 1280, 1320, 1360, 1400, 1440, 1480, 1520, 1560, 1600, 1640, 1680, 1720, 1760, 1800, 1840, 1880, 1920, 1960, 2000

Multiples of 384: 384, 768, 1152, 1536, 1920, 2304, 2688

So the LCM for 40 and 384 is 1920

Finding LCM for 40 and 384 by Prime Factorization

Another method to find LCM for numbers 40 and 384 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 40: 2, 2, 2, 5 (exponent form: 23, 51)

All Prime Factors of 384: 2, 2, 2, 2, 2, 2, 2, 3 (exponent form: 27, 31)

27 × 51 × 31 = 1920

LCM Table

Number 1Number 2LCM
253849600
263844992
273843456
283842688
2938411136
303841920
3138411904
32384384
333844224
343846528
3538413440
363841152
3738414208
383847296
393844992
403841920
4138415744
423842688
4338416512
443844224
453845760
463848832
4738418048
48384384
4938418816
503849600
513846528
523844992
5338420352
543843456

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 40 and 384? (The answer is: 1920). Select the first number (e.g. '40') and the second number (e.g. '384'). 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

FAQ

What's the Least Common Multiple (LCM) of 40 and 384?

LCM of 40 and 384 is 1,920