The factors of 200 are: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, and 200.
The prime factors of 200 are: 2 and 5.
The factors of 280 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, and 280.
The prime factors of 280 are: 2, 5, and 7.
As a product of its prime factors: 2*2*2*5*7 = 280
The prime factors of 280 are 2, 2, 2, 5, and 7. The prime factors of 240 are 2, 2, 2, 2, 3, and 5. The prime factors of 200 are 2, 2, 2, 5, and 5. The prime factors they all have in common are 2, 2, 2, and 5, so the greatest common factor is 2 x 2 x 2 x 5 = 40.
280 = 23 x 5 x 7
The prime factors of 200 are: 2, 5
The factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, and 280. The factors pairs are 1*280, 2*140, 4*70, 5*56, 7*40, 8*35, 10*28, 14*20 The prime factors of 280 are 2, 2, 2, 5, and 7.
As a product of its prime factors: 2*2*2*5*7 = 280
The prime factors of 280 are 2, 2, 2, 5, and 7. The prime factors of 240 are 2, 2, 2, 2, 3, and 5. The prime factors of 200 are 2, 2, 2, 5, and 5. The prime factors they all have in common are 2, 2, 2, and 5, so the greatest common factor is 2 x 2 x 2 x 5 = 40.
As a product of its prime factors: 2*2*2*5*7 = 280
81 and 200 have no common prime factors.
280 = 23 x 5 x 7
The prime factors of 200 are: 23 x 52
The prime factors of 200 are: 2, 5
The prime factors of 200 are 2 and 5 or as a product of its prime factors 2*2*2*5*5 = 200
The prime factors of 200 are 2 and 5 As a product of its prime factors: 2*2*2*5*5 = 200
The prime factors of 200 are: 2 5
The prime factors of 200 are: 2, 5
The factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, and 280. The factors pairs are 1*280, 2*140, 4*70, 5*56, 7*40, 8*35, 10*28, 14*20 The prime factors of 280 are 2, 2, 2, 5, and 7.