LCM for 42 and 66
"Least Common Multiple" Calculator
What's the Least Common Multiple (LCM) of 42 and 66?
(Four hundred sixty-two)
Finding LCM for 42 and 66 using GCF's of these numbers
The first method to find LCM for numbers 42 and 66 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 42 and 66 is 6, so
LCM = (42 × 66) ÷ 6
LCM = 2772 ÷ 6
LCM = 462
Finding LCM for 42 and 66 by Listing Multiples
The second method to find LCM for numbers 42 and 66 is to list out the common multiples for both nubmers and pick the first which matching:
Multiples of 42: 42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 462, 504, 546
Multiples of 66: 66, 132, 198, 264, 330, 396, 462, 528, 594
So the LCM for 42 and 66 is 462
Finding LCM for 42 and 66 by Prime Factorization
Another method to find LCM for numbers 42 and 66 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 42: 2, 3, 7 (exponent form: 21, 31, 71)
All Prime Factors of 66: 2, 3, 11 (exponent form: 21, 31, 111)
21 × 31 × 71 × 111 = 462
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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
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What's the Least Common Multiple (LCM) of 42 and 66?
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- Наименьшее общее кратное 42 и 66