That's the least common multiple, or LCM.
One way to find a common multiple of any group of numbers is to multiply them all (to find the product). So one common multiple of 42 and 60 is 42x60=2520 This will not however, always give the LOWEST common multiple, which in this case is 420.
GCF can sometimes be prime b ut not always. It is the Greatest (largest)number which will evenly divide into a given group of numbers. Prime numbers are not the only numbers that diviide into some thing and some \times, depending on the group of numbers given, it is prime. EX find GFC for 21 and 14 this is 7 which is prime find the gcf for 14 and 42 even though both are divisible by 7 (a prime) the Gcf is 14 itself. You were probably taught to do a prime factorization as the 1st step in finding the GCF. After that you must find all common factors in the list of primes and multiply them together. By multiplying you are creating a number that is not prime. If there is only one common prime number there is nothing to multiply so in that case the GCF is prime.
The numerical average of a group of numbers is the ratio of the sum of group of numbers to the total amount of numbers. This is also known as the mean.
Average of the numbers in a group =(the sum of all the numbers in the group) divided by (the number of numbers in the group)
Asking a multiple choice question without providing the choices doesn't really seem fair.
A number is an exact multiple of each of a group of numbers. For example, 15 and 30 are common multiple of 3 and 5.
-- The least common factor of any group of whole numbers is ' 1 '.-- The greatest common factor of 10 and 35 is 5 .-- The least common multiple LCM(10, 35) = 70
That's the least common multiple, or LCM.
It is called the "least common multiple".
The GCF is 13.
The Least Common Multiple (or Lowest Common Multiple) of a group of numbers, called the LCM, is the smallest number that's a multiple of all the numbers. For instance, the LCM of 16 and 20 is 80; 80 is the smallest number that's both a multiple of 16 and a multiple of 20.
Prime factorization.
If you take all the common prime factors between numbers and multiply them it will give you the gcf.
A multiple is a number that the original number divides evenly into.Ex. 120 is a multiple of 60.A common multiple is a number that a pair/group of numbers both divide evenly into.Ex. 12 is a common multiple of 2, 3, 4, and 6.
The least common factor of any set of numbers is 1.
The least common factor of any group of two or more numbers is always 1. The greatest common factor of 3, 5, 7, and 8 is also 1. The least common multiple (LCM) is the multiple of the highest power of prime factors in two or more numbers. Example: LCM of 3, 5, 7, and 8 is 840, which is the multiple of the highest power of all their prime factors, 23 x 3 x 5 x 7.