LCM for 55 and 105

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What's the Least Common Multiple (LCM) of 55 and 105?

Answer

LCM of 55 and 105 is
1,155

(One thousand one hundred fifty-five)

Finding LCM for 55 and 105 using GCF of these numbers

The first method to find LCM for numbers 55 and 105 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 55 and 105 is 5, so

LCM = (55 × 105) ÷ 5

LCM = 5,775 ÷ 5

LCM = 1,155

Finding LCM for 55 and 105 by Listing Multiples

The second method to find LCM for numbers 55 and 105 is to list out the common multiples for both numbers and pick the first one that matches:

Multiples of 55: 55, 110, 165, 220, 275, 330, 385, 440, 495, 550, 605, 660, 715, 770, 825, 880, 935, 990, 1,045, 1,100, 1,155, 1,210, 1,265

Multiples of 105: 105, 210, 315, 420, 525, 630, 735, 840, 945, 1,050, 1,155, 1,260, 1,365

So the LCM for 55 and 105 is 1,155

Finding LCM for 55 and 105 by Prime Factorization

Another method to find LCM for numbers 55 and 105 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 55: 5, 11 (exponent form: 51, 111)

All Prime Factors of 105: 3, 5, 7 (exponent form: 31, 51, 71)

51 × 111 × 31 × 71 = 1,155

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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 55 and 105? (The answer is: 1,155). Select the first number (e.g. '55') and the second number (e.g. '105'). 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
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LCM Table

Number 1Number 2LCM
5590990
55915,005
55925,060
55935,115
55945,170
55951,045
55965,280
55975,335
55985,390
5599495
551001,100
551015,555
551025,610
551035,665
551045,720
551051,155
551065,830
551075,885
551085,940
551095,995
55110110
551116,105
551126,160
551136,215
551146,270
551151,265
551166,380
551176,435
551186,490
551196,545

FAQ

What's the Least Common Multiple (LCM) of 55 and 105?

LCM of 55 and 105 is 1,155

How to find the LCM of 55 and 105 using prime factorization?

To find the LCM of 55 and 105, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 1,155.

What is the difference between LCM and GCF?

LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 55 and 105: LCM = 1,155, GCF = 5.

See Also