No, 3 is not a factor of 40.
The Greatest Common Factor of 30, 40: 10
The highest common factor is 8.
Since 40 is a factor of 120, all of its factors are common.
The least common multiple of two numbers is the product of the two numbers divided by their greatest common factor. The greatest common factor of 4 and 8 is 8. (See related question "What is the greatest common factor of 4 and 8?" for this calculation.) So, the least common multiple is 4 x 8 ÷ 4 = 8. Common multiples of 4 and 8 include 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, etc. Although 16 is a common multiple, it is not the least common multiple.
The GCF is 5.
The Least Common Multiple (LCM) for 35 and 40 is 280
The greatest common factor of 30, 35, and 40 is 5. (30/5 = 6), (35/5 = 7), and (40/5 = 8)
Both 35 and 40 are divisible by 5.
The least common factor is: 1
The least common factor is: 1
The greatest common factor or the highest common factor is the highest number that divides exactly into two or more numbers. 35: 1, 5, 7, 35 40: 1, 2, 4, 5, 8, 10, 20 40 The GCF for 35 and 40 is 5.
5
5
The least common factor of any set of integers is 1.
It is 1 and the highest common factor is 5
The least common factor of any set of numbers is 1.