1 and 2
The factors of 54 are:1, 2, 3, 6, 9, 18, 27, 54The factors of 56 are:1, 2, 4, 7, 8, 14, 28, 56The common factors are:1, 2
1 (this is a factor of all numbers) and 2 (since 54 and 56 are both even numbers)
54 - 1, 2, 3, 6, 9, 18, 27, 54 56 - 1, 2, 4, 7, 8, 14, 28, 56 They each have 8 factors. They have a total of 16 factors together.
GCF(54, 56) = 2.
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40 The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54 The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56
2
The common factors of 56 and 18 are 1 and 2.
The common factors of 32 and 54 are: 1 and 2
The common factors of 54 and 75 are 1 and 3.
Common factors of 54 and 22 are: 1 and 2.
The lowest (or least) common multiple of 56 and 54 is 1,512 This can be found by collecting the least set of prime number factors of both 54 and 56. The prime factors of 54 are (54 = 27 x 2 = 9 x 3 x 2 =) 3 x 3 x 3 x 2. The prime number factors of 56 are (56 = 28 x 2 = 14 x 2 x 2 =) 7 x 2 x 2 x 2 . The lowest common multiple can now be found by looking at both sets of prime number factors. 2 appears in both sets so we do not need to repeat in the answer, all other numbers are multiplied. The LCM is then 7 x 2 x 2 x 2 x 3 x 3 x 3 = 1,512
The common factors of 38 and 56 are 1 and 2.