LCM for 7 and 17

The first method to find LCM for numbers 7 and 17 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 7 and 17 is 1, so

LCM = (7 × 17) ÷ 1

LCM = 119 ÷ 1

LCM = 119

The second method to find LCM for numbers 7 and 17 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, 98, 105, 112, 119, 126, 133

Multiples of 17: 17, 34, 51, 68, 85, 102, 119, 136, 153

So the LCM for 7 and 17 is 119

Another method to find LCM for numbers 7 and 17 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: