LCM for 13 and 39
What's the Least Common Multiple (LCM) of 13 and 39?
(Thirty-nine)
Finding LCM for 13 and 39 using GCF's of these numbers
The first method to find LCM for numbers 13 and 39 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 13 and 39 is 13, so
LCM = (13 × 39) ÷ 13
LCM = 507 ÷ 13
LCM = 39
Finding LCM for 13 and 39 by Listing Multiples
The second method to find LCM for numbers 13 and 39 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 13: 13, 26, 39, 52, 65
Multiples of 39: 39, 78, 117, 156, 195, [...], 39
So the LCM for 13 and 39 is 39
Finding LCM for 13 and 39 by Prime Factorization
Another method to find LCM for numbers 13 and 39 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 13: 13 (exponent form: 131)
All Prime Factors of 39: 3, 13 (exponent form: 31, 131)
131 × 31 = 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