The GCF is 101.
The GCF of 303 and 505 is 101.
The first five multiples of 101: 101, 202, 303, 404, 505
The GCF is 1.
You need at least two numbers to find a GCF.
202, 303, 505, 707, 1010
101, 202, 303, 404, 505, 606, 707, 808, 909, 1010, 1111, . . .
Any of its multiples
You need at least two numbers to find a GCF.
101, 202, 303, 404, 505, 606, 707, 808, 909, 1010, 1111, 1212
2 x 3 x 5 = 303 x 5 x 5 = 753 x 5 = 15, the GCF.
2 x 3 x 5 = 303 x 3 x 3 x 5 = 1353 x 5 = 15, the GCF
The factors of 505 are: 1 5 101 505