Just 1.
The greatest common factor of 8 and 45 is 1. The numbers 8 and 45 have no prime factors in common.
Common factors of 45 and 144 are: 1, 3, and 9.
The common factor of 32 and 45 is 1. The factors of 32 are 1, 2, 4, 8, 16, and 32 The factors of 45 are 1, 3, 5, 9, 15, and 45 The only common factor of 32 and 45 is 1.
The common factors of 35 and 45 are: 1 and 5
The common factors of 40 and 45 are the numbers that can evenly divide both 40 and 45 without leaving a remainder. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The factors of 45 are 1, 3, 5, 9, 15, and 45. The only common factor of 40 and 45 is 5.
The common factors of 24 and 45 are: 1 and 31 and 3
The factors of 45 are 1, 3, 5, 9, 15, 45. For them to be common, they need to be compared to another set of factors.
The GCF of 40 and 45 is 5.The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, and 40The factors of 45 are: 1, 3, 5, 9, 15, and 45The greatest common factor (GCF) is 5.The best way to check your work is to make the numbers a fraction and reduce by the GCF: 40/45 = 8/9. If the number doesn't reduce any further, then your GCF is correct.
The GCF of 24 and 45 is 3. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 24 are 2, 2, 2, and 3. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.
25, 27, and 45 share no common factors aside from 1.
The common factors of 45 and 54 are: 1, 3, and 9
The common factors of 18 and 45 are 1, 3 and 9.