Take any two coprime numbers p and q. There are infinitely many such pairs.
Then the GCF of 9p and 9q will be 9.
For example, 9 = 120 and q = 121 gives
1080 and 1089
9 & 24
Pick any two coprime numbers. Multiply both by 9. Their GCF will be 9.
4 and 9 have a GCF of 1
The same as what? The GCF of two numbers will be the same; the GCF of 3 and 9 will always be 3. The GCF of 9 and 12 will also always be 3, but the GCF of 4 and 12 will always be 4.
You need at least two numbers to find a GCF. If that's 4 and 9, the GCF is 1.
You need at least two numbers to find a GCF. If that's 11 and 9, the GCF is 1.
12 57
Pick any two numbers, x and y that are coprime. That is, they have no factor in common. Then GCF of 9x and 9y will be 9. Pick any two numbers, x and y that are coprime. That is, they have no factor in common. Then GCF of 9x and 9y will be 9. Pick any two numbers, x and y that are coprime. That is, they have no factor in common. Then GCF of 9x and 9y will be 9. Pick any two numbers, x and y that are coprime. That is, they have no factor in common. Then GCF of 9x and 9y will be 9.
The Greatest Common Factor of the two numbers is 9. 288/9 = 32, 405/9 = 45.
You need at least two numbers to find a GCF. If that's 2 and 79, the GCF is 1. If that's 27 and 9, the GCF is 9.
The smaller number. The GCF of 9 and 18 is 9.
You need at least two numbers to find a GCF. If that's 18 and 9, the GCF is 9.