LCM for 17 and 68
What's the Least Common Multiple (LCM) of 17 and 68?
(Sixty-eight)
Finding LCM for 17 and 68 using GCF's of these numbers
The first method to find LCM for numbers 17 and 68 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 17 and 68 is 17, so
LCM = (17 × 68) ÷ 17
LCM = 1156 ÷ 17
LCM = 68
Finding LCM for 17 and 68 by Listing Multiples
The second method to find LCM for numbers 17 and 68 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 17: 17, 34, 51, 68, 85, 102
Multiples of 68: 68, 136, 204, 272, 340, 408, [...], 68
So the LCM for 17 and 68 is 68
Finding LCM for 17 and 68 by Prime Factorization
Another method to find LCM for numbers 17 and 68 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 17: 17 (exponent form: 171)
All Prime Factors of 68: 2, 2, 17 (exponent form: 22, 171)
171 × 22 = 68
Related Calculations
See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
<a href="https://calculat.io/en/number/least-common-multiple-lcm-of/17--68">What is the LCM of 17 and 68? - Calculatio</a>
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