LCM for 7 and 55

"Least Common Multiple" Calculator

Least Common Multiple of

and

What's the Least Common Multiple (LCM) of 7 and 55?

Answer

LCM of 7 and 55 is 385

(Three hundred eighty-five)

Finding LCM for 7 and 55 using GCF of these numbers

The first method to find LCM for numbers 7 and 55 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 7 and 55 is 1, so

LCM = (7 × 55) ÷ 1

LCM = 385 ÷ 1

LCM = 385

Finding LCM for 7 and 55 by Listing Multiples

The second method to find LCM for numbers 7 and 55 is to list out the common multiples for both numbers and pick the first one that matches:

Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168, 175, 182, 189, 196, 203, 210, 217, 224, 231, 238, 245, 252, 259, 266, 273, 280, 287, 294, 301, 308, 315, 322, 329, 336, 343, 350, 357, 364, 371, 378, 385, 392, 399

Multiples of 55: 55, 110, 165, 220, 275, 330, 385, 440, 495

So the LCM for 7 and 55 is 385

Finding LCM for 7 and 55 by Prime Factorization

Another method to find LCM for numbers 7 and 55 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 7: 7 (exponent form: 71)

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

71 × 51 × 111 = 385

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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 7 and 55? (The answer is: 385). Select the first number (e.g. '7') and the second number (e.g. '55'). 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

Least Common Multiple of

and

LCM Table

Number 1Number 2LCM
15555
255110
355165
455220
55555
655330
755385
855440
955495
1055110
115555
1255660
1355715
1455770
1555165
1655880
1755935
1855990
19551045
2055220
21551155
2255110
23551265
24551320
2555275
26551430
27551485
28551540
29551595
3055330

FAQ

What's the Least Common Multiple (LCM) of 7 and 55?

LCM of 7 and 55 is 385

How to find the LCM of 7 and 55 using prime factorization?

To find the LCM of 7 and 55, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 385.

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 7 and 55: LCM = 385, GCF = 1.

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