The common factors are: 1, 2, 4
The common factors of 28 and 40 are 1, 2 and 4.
The LCM of 28 and 40 is 280.
28 = 2x2x7
LCM(28, 40, 44) = 3080
4
4
4
The factors of 28 are: 1, 2, 4, 7, 14, 28 The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40 The common factors are: 1, 2, 4 The Greatest Common Factor: 4
The common factors are: 1, 2, 4
The least common multiple of 28, 20 an 144 is 5040.
Answer: 1 The factors of 28 are 1, 2, 4, 7, 14, and 28. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The common factors are 1, 2, and 4; the least (smallest) common factor is 1.
The LCM is: 280