Assuming numbers are just a construct of our minds, we could even argue that unicorns have more existence than numbers. We can’t proof a unicorn doesn’t exist. So there is a probability of its existence greater than zero. As numbers are only constructed, we’re sure they don’t exist and this shows that unicorns have more existence than numbers.
Professional philosophers seem to be similarly split, according to a survey[1].
It seems to me like one of those cases where one's opinion is strongly influenced by raw intuition.<p>[1] <a href="https://survey2020.philpeople.org/survey/results/4818" rel="nofollow">https://survey2020.philpeople.org/survey/results/4818</a>