LCM for 1 and 27
What's the Least Common Multiple (LCM) of 1 and 27?
Answer
(Twenty-seven)
Finding LCM for 1 and 27 using GCF of these numbers
The first method to find LCM for numbers 1 and 27 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 1 and 27 is 1, so
LCM = (1 × 27) ÷ 1
LCM = 27 ÷ 1
LCM = 27
Finding LCM for 1 and 27 by Listing Multiples
The second method to find LCM for numbers 1 and 27 is to list out the common multiples for both numbers and pick the first one that matches:
Multiples of 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
Multiples of 27: 27, 54, 81
So the LCM for 1 and 27 is 27
Finding LCM for 1 and 27 by Prime Factorization
Another method to find LCM for numbers 1 and 27 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
1 has no prime factors — 1 is neither prime nor composite
All Prime Factors of 27: 3, 3, 3 (exponent form: 33)
LCM = 27
Related Calculations
See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers

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