LCM for 3 and 13
What's the Least Common Multiple (LCM) of 3 and 13?
(Thirty-nine)
Finding LCM for 3 and 13 using GCF's of these numbers
The first method to find LCM for numbers 3 and 13 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 3 and 13 is 1, so
LCM = (3 × 13) ÷ 1
LCM = 39 ÷ 1
LCM = 39
Finding LCM for 3 and 13 by Listing Multiples
The second method to find LCM for numbers 3 and 13 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45
Multiples of 13: 13, 26, 39, 52, 65
So the LCM for 3 and 13 is 39
Finding LCM for 3 and 13 by Prime Factorization
Another method to find LCM for numbers 3 and 13 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 3: 3 (exponent form: 31)
All Prime Factors of 13: 13 (exponent form: 131)
31 × 131 = 39
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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