LCM for 8 and 64
What's the Least Common Multiple (LCM) of 8 and 64?
(Sixty-four)
Finding LCM for 8 and 64 using GCF's of these numbers
The first method to find LCM for numbers 8 and 64 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 8 and 64 is 8, so
LCM = (8 × 64) ÷ 8
LCM = 512 ÷ 8
LCM = 64
Finding LCM for 8 and 64 by Listing Multiples
The second method to find LCM for numbers 8 and 64 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80
Multiples of 64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, [...], 64
So the LCM for 8 and 64 is 64
Finding LCM for 8 and 64 by Prime Factorization
Another method to find LCM for numbers 8 and 64 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 8: 2, 2, 2 (exponent form: 23)
All Prime Factors of 64: 2, 2, 2, 2, 2, 2 (exponent form: 26)
26 = 64
Related Calculations
LCM Table
About "Least Common Multiple" Calculator
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers