Effect of a Tattoo Number

Probably not. Traditional Pythagorean numerology has no calculations that specifically take a tattoo into consideration.

If the person with the tattoo identifies strongly with that number, there may be a similar effect to what is generally viewed as external influences (not part of the numerology chart). A house number would be an example external influence.

Generally, influence from external numerology energy becomes null when a person is no longer within the realm of that influence (not within the previously mentioned house, for example). However, with a tattoo, the person would always be within the influence represented by the number.

Excluding exceptional circumstances, the tattoo number's influence, even if the number is very strongly identified with, would be less than the core numbers