Answer:
Okay so the factors for 56 are 1, 2, 4, 7, 8, 14, 28, and of course 56. So the factors for 40 are 1, 2, 4, 5, 8, 10, 20, and of course 40.
Okay so now the prevalent factors are now 1, 2, 4, and 8.
So the greatest prevalent factor is now 8.
The GCF can be calculated by identifying the prevalent prime numbers and by withal multiplying them together.
The prime factors of 56 are 2, 2, 2, and 7
The prime factors of 40 are 2, 2, 2, and 5.
Okay so now the prime factors in prevalence are 2, 2, and 2, so the greatest mundane factor is 2 x 2 x 2 = 8.
I do hope this helps you!