Two numbers whose greatest common factor (GCF) is 20 are any pair of numbers that are multiples of 20. For example, 20 and 40 have a GCF of 20 because 20 is a factor of both numbers. Another pair could be 60 and 80, as 20 is also a factor of both of these numbers.
440
There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.
To find common multiples of two or more numbers, you can list the multiples of each.4, 8, 12, 16, 20, 24, 28, 32, 26, 40, 445, 10, 15, 20, 25, 30, 35, 40, 4520 and 40 are the common multiples that are listed. 20 is the Least Common Multiple (LCM).
4 is the greatest common factor. The least common multiplier (least common factor) of 8 and 20 is 40. To solve for this you need to find the prime factors of each number 8 is 2x2x2 20 is 2x2x5 then count how many times each number is used in each set 8 has 3 twos 20 has 2 twos and 1 five if the same number is used in both numbers throw out the repeat numbers from the smaller set 8 has more twos than 20 does, throw out the 2 twos multiple all remaining numbers together 2x2x2x5=40 Check your work by dividing each number into your result, both should divide into it evenly 40/8=5 40/20=2 40 is the lowest number that both the 8 and the 20 will go into evenly.
The GCF of 20 and 40 is 20. The GCF of 40 and 80 is 40.
The greatest common factor of the numbers 20, 40, and 60 is 20.
There can be only one greatest common factor for any set of numbers. GCF(40, 20) = 20.
The lowest common multiple of 8 and 20 is 40.40 is the least common multiple of 8 and 20Least Common Multiple (LCM) for 8 20 is 40
The least common multiple of 20 , 40 , 30 = 120
20 and 40
20 and 40 have 4 and 5 as common factors.
Two numbers whose greatest common factor (GCF) is 20 are any pair of numbers that are multiples of 20. For example, 20 and 40 have a GCF of 20 because 20 is a factor of both numbers. Another pair could be 60 and 80, as 20 is also a factor of both of these numbers.
The least common factor of any set of numbers is 1.
The LCM of the given numbers is 120
10 and any multiple of 10 (20, 30, 40, etc) 20 and 30, 40 and 90, 60 and 70
There are 20 odd numbers in 40.