'factual evidence' is correct and usable in written English. You can use it when referring to facts and data that can be used to support an argument or point of view. For example, "The lawyer presented convincing factual evidence to support her client's innocence.".
But we had no factual evidence.
"There was no factual evidence," he said in the deposition.
Support your answers with factual evidence and examples.
"We thought it was important to have factual evidence, because it does change your thinking.
Our stewardship of creation must be based on Biblical principles and factual evidence.
As it happens, there is solid factual evidence for this assertion.
But the authorities "did not provide factual evidence to corroborate their denials," the report says.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia