diff --git a/src/bin/field_search.rs b/src/bin/field_search.rs
deleted file mode 100644
index 6c433339..00000000
--- a/src/bin/field_search.rs
+++ /dev/null
@@ -1,57 +0,0 @@
-fn main() {
-    for deg in (61..=64).rev() {
-        for adic in (28..=32).rev() {
-            for i in 1u128..100000 {
-                if i.count_ones() == 1 && i != 1 {
-                    continue;
-                }
-                let epsilon = i * (1u128 << adic) - 1;
-                if epsilon > 1 << 32 {
-                    break;
-                }
-                let n = ((1u128) << deg) - epsilon;
-                let n = n as u64;
-                let prime = is_prime(n);
-                if prime {
-                    println!("2^{} - ({} * 2**{} - 1) = {}", deg, i, adic, n);
-                    let perm3 = (n - 1) % 3 != 0;
-                    println!("  x^3 {}", perm3);
-                    if perm3 {
-                        let mut exp = n as u128;
-                        while exp % 3 != 0 {
-                            exp += (n - 1) as u128;
-                        }
-                        exp /= 3;
-                        println!("  exp weight {}", exp.count_ones());
-                    }
-                    let perm5 = (n - 1) % 5 != 0;
-                    println!("  x^5 {}", perm5);
-                    if perm5 {
-                        let mut exp = n as u128;
-                        while exp % 5 != 0 {
-                            exp += (n - 1) as u128;
-                        }
-                        exp /= 5;
-                        println!("  exp weight {}", exp.count_ones());
-                    }
-                }
-            }
-        }
-    }
-}
-
-fn is_prime(n: u64) -> bool {
-    if (n & 1) == 0 {
-        return false;
-    }
-
-    let mut d = 3;
-    while d * d <= n {
-        if n % d == 0 {
-            return false;
-        }
-        d += 2;
-    }
-
-    true
-}