The greatest common factor of two numbers divisible by 2 and 5 must be divisible by 10. Right or wrong

The greatest common factor of two numbers divisible by 2 and 5 must be divisible by 10. Right or wrong

Yes, because they are multiples of 2 and 5 at the same time, their digits must be 0, that is, the number of the whole ten (which is also a multiple relationship). Their greatest common factor is the larger one, and it must be a multiple of 10, so it's right. I don't know if it's like this?