LCM for 9 and 17

The first method to find LCM for numbers 9 and 17 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 9 and 17 is 1, so

LCM = (9 × 17) ÷ 1

LCM = 153 ÷ 1

LCM = 153

The second method to find LCM for numbers 9 and 17 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 9: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171

Multiples of 17: 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187

So the LCM for 9 and 17 is 153

Another method to find LCM for numbers 9 and 17 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: