The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. If you have only one number - whether or not it is a prime - you cannot have a least COMMON multiple.
The least common multiple of two different prime numbers is the product of those two prime numbers.
The product of all pairs of prime numbers is always the least common multiple of the two prime numbers.
The Least Common Multiple of 8, 242 is 968.
The Least Common Multiple of 48, 72 is 144.
The Least Common Multiple of 75, 105 is 525.
Their product.
The Least Common Multiple (LCM) for 13 & 9 is 117.
The greatest common multiple is an infinite amount and not very practical for problem solving. The least common multiple of two prime numbers is their product.
The LCM of 14 and 42 is 42. The simplest method to determine the least common multiple in this case is to notice that 42 is a multiple of 14. Since 42 is a multiple of 14, the least common multiple is 42. To determine the least common multiple of two numbers, you can also determine the prime factors of both numbers. Then, determine the prime factors they have in common. Multiply all their prime factors together (in other words, multiply both numbers together) and divide by the prime factors they have in common (in other words, their greatest common factor). The prime factors of 14 are 2 and 7. The prime factors of 42 are 2, 3, and 7. The greatest common factor of 14 and 42 is 14. So, the least common multiple of 14 and 42 is (2x7) x (2x3x7) ÷ 14 = 42.
The least common factor of any set of positive integers is 1. The least common multiple of relatively prime numbers is their product.
When they have no common prime factors.