LCM for 4 and 25

The first method to find LCM for numbers 4 and 25 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 4 and 25 is 1, so

LCM = (4 × 25) ÷ 1

LCM = 100 ÷ 1

LCM = 100

The second method to find LCM for numbers 4 and 25 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, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108

Multiples of 25: 25, 50, 75, 100, 125, 150

So the LCM for 4 and 25 is 100

Another method to find LCM for numbers 4 and 25 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: