LCM for 77 and 91
What's the Least Common Multiple (LCM) of 77 and 91?
(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
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
<a href="https://calculat.io/en/number/least-common-multiple-lcm-of/77--91">What is the LCM of 77 and 91? - Calculatio</a>
LCM Table
About "Least Common Multiple" Calculator
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