diff --git a/bin/prime.py b/bin/prime.py
index cf5edb95f..d1ada942d 100755
--- a/bin/prime.py
+++ b/bin/prime.py
@@ -73,9 +73,9 @@ def prime(n):
     """Simple program that factors a number using a [[Sieve of Eratosthenes]]."""
     p, sieve = is_prime(n)
     if p:
-        click.echo(f"***{n}*** is ***prime***.")
+        click.echo(f"**{n}** is **prime**.")
     else:
-        click.echo(f"***{n}*** is ***not prime***. Want proof? :)")
+        click.echo(f"**{n}** is **not prime**. Want proof? :)")
         click.echo("\n".join([line for line in PROOF if f'[[{n}]]' in line]))
 
     click.echo(f"Primes up to {n}: {print_sieve(sieve)}.")