LCM for 80 and 115
What's the Least Common Multiple (LCM) of 80 and 115?
Answer
(One thousand eight hundred forty)
Finding LCM for 80 and 115 using GCF of these numbers
The first method to find LCM for numbers 80 and 115 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 80 and 115 is 5, so
LCM = (80 × 115) ÷ 5
LCM = 9,200 ÷ 5
LCM = 1,840
Finding LCM for 80 and 115 by Listing Multiples
The second method to find LCM for numbers 80 and 115 is to list out the common multiples for both numbers and pick the first one that matches:
Multiples of 80: 80, 160, 240, 320, 400, 480, 560, 640, 720, 800, 880, 960, 1,040, 1,120, 1,200, 1,280, 1,360, 1,440, 1,520, 1,600, 1,680, 1,760, 1,840, 1,920, 2,000
Multiples of 115: 115, 230, 345, 460, 575, 690, 805, 920, 1,035, 1,150, 1,265, 1,380, 1,495, 1,610, 1,725, 1,840, 1,955, 2,070
So the LCM for 80 and 115 is 1,840
Finding LCM for 80 and 115 by Prime Factorization
Another method to find LCM for numbers 80 and 115 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 80: 2, 2, 2, 2, 5 (exponent form: 24, 51)
All Prime Factors of 115: 5, 23 (exponent form: 51, 231)
24 × 51 × 231 = 1,840
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See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
- Least Common Multiple of 3 Numbers - Find the Least Common Multiple (LCM) of three numbers
- Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers

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