LCM for 7 and 11

The first method to find LCM for numbers 7 and 11 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 7 and 11 is 1, so

LCM = (7 × 11) ÷ 1

LCM = 77 ÷ 1

LCM = 77

The second method to find LCM for numbers 7 and 11 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91

Multiples of 11: 11, 22, 33, 44, 55, 66, 77, 88, 99

So the LCM for 7 and 11 is 77

Another method to find LCM for numbers 7 and 11 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: