The GCF of 497 and 1000 is 1.
There are 1000millimetres in a metre. Therefore you divide mm by 1000 to get metres. 497/1000 is 0.497 metres.
The GCF is 1000.
The GCF is 125.
The GCF is 2.
The GCF is 100.
The GCF is 1.
The GCF is 2.
The GCF is 4.
The GCF is 1.
The GCF is 5.
The GCF is 1.
The GCF is 1.