diff --git a/src/main.rs b/src/main.rs
index 0b1ced5..032b8c5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -74,10 +74,10 @@ fn worker(
     try_set_thread_priority();
 
     static INC: once_cell::sync::Lazy<BigUint> = Lazy::new(BigUint::one);
-
-    let one_thousand = &BigUint::from(SPLITTER * 10);
-    let one_hundred = &BigUint::from(SPLITTER);
-    let ten = &BigUint::from(10u8);
+    static ONE_THOUSAND: once_cell::sync::Lazy<BigUint> =
+        Lazy::new(|| BigUint::from(SPLITTER * 10));
+    static ONE_HUNDRED: once_cell::sync::Lazy<BigUint> = Lazy::new(|| BigUint::from(SPLITTER));
+    static TEN: once_cell::sync::Lazy<BigUint> = Lazy::new(|| BigUint::from(10u8));
 
     let work_uint = BigUint::from(workloads);
     let mut number = BigUint::from(i) * &work_uint;
@@ -94,7 +94,7 @@ fn worker(
             progress.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
         }
 
-        if (&number * one_thousand) / &max / ten == &number / &max * one_hundred {
+        if (&number * &*ONE_THOUSAND) / &max / &*TEN == &number / &max * &*ONE_HUNDRED {
             drop(global_primes);
 
             let mut new_primecache = arcclone.write().unwrap();