1, 5, 7, 35, 49, 245
If 245 is a factor, and it is between 200 and 300, then the number must be 245 - provided it is a multiple of 7, which it is.
The GCF is 1.
There are 3 factor pairs of 245:245 = 1 x 245245 = 5 x 49245 = 7 x 35
Seven and 245's highest common factor is seven.
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 common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 128 are 1, 2, 4, 8, 16, 32, 64, and 128. The factors of 245 are 1, 5, 7, 35, 49, and 245. The only common factor is 1. Therefore, the greatest common factor is 1.
The greatest common factor (GCF) of 15 and 245 is 5.
The right answer is 5x5x17
245 5, 49 5, 7, 7
1, 5, 7, 35, 49, 245
The GCF of 28 and 245 is 7.
35 is the greatest common factor of 315 and 245.
Divide 245 by 1, 5 and 7.