15∣3 . 5∣5 . 1∣ 15 = 3 × 5 33∣3 11∣11 . 1∣ 33 = 3 × 11 45∣3 15∣3 . 5∣5 . 1∣ 45 = 3 × 3 × 5 L CF ( 15 ; 33 ; 45 ) = 3
The common factors of 15, 33, and 45 are 1 and 3. We found these factors by determining the factors of each individual number and identifying the common ones among them. The prime factorization helped confirm these common factors.
;