diff --git a/src/uu/factor/src/factor.rs b/src/uu/factor/src/factor.rs
index e86787a36..a27c86c62 100644
--- a/src/uu/factor/src/factor.rs
+++ b/src/uu/factor/src/factor.rs
@@ -13,6 +13,7 @@ use std::fmt;
 use crate::numeric::{Arithmetic, Montgomery};
 use crate::{miller_rabin, rho, table};
 
+#[derive(Clone, Debug)]
 pub struct Factors {
     f: BTreeMap<u64, u8>,
 }