A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common.
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.
The factors of 160 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, and 160.
The factors of 256 are 1, 2, 4, 8, 16, 32, 64, 128, and 256.
The common factors are 1, 2, 4, 8, 16, and 32. Therefore, the greatest common factor is 32.
4
That is incorrect. The common factors of 500 and 256 are 1, 2, 4.
256 is not prime. 256 = 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2
256
28 = 256
The greatest common factor of 286 and 251 is 1.
The GCF of 256 and 352 is 32
It is: 4
It is: 16
It is 64
Ah, the greatest common factor of 128 and 256 is 128. You see, the greatest common factor is the largest number that divides evenly into both numbers, and in this case, 128 is the biggest number that fits that description. Just imagine those numbers as happy little friends, sharing their common factor joyfully.
The GCF is 16.
The GCF is 8.
The GCF is 16.
There are many possible pairs. 8, 904 160, 168 256, 328 24, 5320
Common factors of 286 and 242 are: 1, 2, 11, and 22.
The greatest common factor (GCF) of 640 and 256 is 128.