The GCF of 42 and 86 is 2. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 86 are 1, 2, 43, and 86. The common factors are 1 and 2. Therefore, the greatest common factor is 2.
The Least Common Multiple (LCM) for 42 86 is 1,806.
The factors of 86 are 1,2,43 and 86. For them to be common factors, you need another set of factors to compare them to.
The LCM of 26, 42, and 86 is 23,478
The common factors of 86 and 154 are: 1 and 2
The common factors of 72 and 86 are: 1 and 2
The common factors of 42 and 273 are 1, 3, 7 and 21.
The common factors are: 1, 2.
The common factors of 42 and 92 are: 1 and 2
The common factors of 22 and 42 are: 1 and 2
The common factors of 42 and 77 are: 1 and 7
The Common Factors of 42 and 44 are 1, 2