LCM for 19 and 57
What's the Least Common Multiple (LCM) of 19 and 57?
(Fifty-seven)
Finding LCM for 19 and 57 using GCF's of these numbers
The first method to find LCM for numbers 19 and 57 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 19 and 57 is 19, so
LCM = (19 × 57) ÷ 19
LCM = 1083 ÷ 19
LCM = 57
Finding LCM for 19 and 57 by Listing Multiples
The second method to find LCM for numbers 19 and 57 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 19: 19, 38, 57, 76, 95
Multiples of 57: 57, 114, 171, 228, 285, [...], 57
So the LCM for 19 and 57 is 57
Finding LCM for 19 and 57 by Prime Factorization
Another method to find LCM for numbers 19 and 57 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 19: 19 (exponent form: 191)
All Prime Factors of 57: 3, 19 (exponent form: 31, 191)
191 × 31 = 57
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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