No. 10 is a factor of 1780. 1780 is a multiple of 10. As a general rule, factors cannot be larger than the number they are compared to.
10 is a factor of 10.
John Abercrombie was born on October 10, 1780.
John Abercrombie was born on October 10, 1780.
Charles Adam was born on 1780-10-06.
Whitehead Hicks died on 1780-10-04.
Göran Wahlenberg was born on 1780-10-01.
Freeman Walker was born on 1780-10-25.
Hercule Corbineau was born on 1780-04-10.
George Armistead was born on 1780-04-10.
James Cranke died on 1780-10-28.
Patrick Seller the Scottish Lawyer and Factor of the Duke of Sutherland was born in 1780 and died in 1851.
The GCF of 10 and 40 is 10. 10 is a factor of 40, and 10 is the largest factor of itself, so 10 is the greatest common factor of 10 and 40.