LCM for 77 and 91

What's the Least Common Multiple (LCM) of 77 and 91?

Answer: LCM of 77 and 91 is 1,001

(One thousand, one)

Finding LCM for 77 and 91 using GCF's of these numbers

The first method to find LCM for numbers 77 and 91 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 77 and 91 is 7, so

LCM = (77 × 91) ÷ 7

LCM = 7007 ÷ 7

LCM = 1001

Finding LCM for 77 and 91 by Listing Multiples

The second method to find LCM for numbers 77 and 91 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 77: 77, 154, 231, 308, 385, 462, 539, 616, 693, 770, 847, 924, 1001, 1078, 1155

Multiples of 91: 91, 182, 273, 364, 455, 546, 637, 728, 819, 910, 1001, 1092, 1183

So the LCM for 77 and 91 is 1001

Finding LCM for 77 and 91 by Prime Factorization

Another method to find LCM for numbers 77 and 91 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 77: 7, 11 (exponent form: 71, 111)

All Prime Factors of 91: 7, 13 (exponent form: 71, 131)

71 × 111 × 131 = 1001

Related Calculations

See Also

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 77 and 91? (The answer is: 1001). Select the first number (e.g. '77') and the second number (e.g. '91'). 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

LCM Table

Number 1Number 2LCM
62915642
6391819
64915824
6591
66916006
67916097
68916188
69916279
7091910
71916461
72916552
73916643
74916734
75916825
76916916
7791
7891546
79917189
80917280
81917371
82917462
83917553
84911092
85917735
86917826
87917917
88918008
89918099
90918190
919191

FAQ

What's the Least Common Multiple (LCM) of 77 and 91?

LCM of 77 and 91 is 1,001