LCM for 4 and 16

The first method to find LCM for numbers 4 and 16 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 4 and 16 is 4, so

LCM = (4 × 16) ÷ 4

LCM = 64 ÷ 4

LCM = 16

The second method to find LCM for numbers 4 and 16 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 4: 4, 8, 12, 16, 20, 24

Multiples of 16: 16, 32, 48, 64, 80, 96, [...], 16

So the LCM for 4 and 16 is 16

Another method to find LCM for numbers 4 and 16 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: