Fix test

src/math/src/tests/lcm_of_n_numbers_test.cairo

@@ -1,45 +1,45 @@
 use alexandria_math::lcm_of_n_numbers::{lcm, LCMError};
-use core::traits::Into;
 
 // the following trait is not safe, it is only used for testing.
-impl u128_to_u32 of Into<u128, u32> {
+impl u128_into_u32 of Into<u128, u32> {
     fn into(self: u128) -> u32 {
+        let self: felt252 = self.into();
         self.try_into().unwrap()
     }
 }
 
 #[test]
 #[available_gas(1000000000)]
 fn lcm_test() {
-    let arr = array![2_u128, 4_u128, 6_u128, 8_u128, 10_u128];
+    let arr = array![2_u128, 4, 6, 8, 10];
     assert(lcm(arr.span()).unwrap() == 120, 'invalid result');
 }
 
 #[test]
 #[available_gas(1000000000)]
 fn lcm_test_tryinto() {
-    let arr = array![2_u32, 4_u32, 6_u32, 8_u32, 10_u32];
+    let arr = array![2_u32, 4, 6, 8, 10];
     assert(lcm(arr.span()).unwrap() == 120, 'invalid result');
 }
 
 #[test]
 #[available_gas(1000000000)]
 fn lcm_test_inverse() {
-    let arr = array![10_u128, 8_u128, 6_u128, 4_u128, 2_u128];
+    let arr = array![10_u128, 8, 6, 4, 2];
     assert(lcm(arr.span()).unwrap() == 120, 'invalid result');
 }
 
 #[test]
 #[available_gas(1000000000)]
 fn lcm_test_3() {
-    let arr = array![3_u128, 6_u128, 12_u128, 99_u128];
+    let arr = array![3_u128, 6, 12, 99];
     assert(lcm(arr.span()).unwrap() == 396, 'invalid result');
 }
 
 #[test]
 #[available_gas(1000000000)]
 fn lcm_test_4() {
-    let arr = array![1_u128, 2_u128, 8_u128, 3_u128];
+    let arr = array![1_u128, 2, 8, 3];
     assert(lcm(arr.span()).unwrap() == 24, 'invalid result');
 }