To find the Greatest Common Factor (GCF) of 15, 40, and 65, we first need to find the prime factors of each number. The prime factors of 15 are 3 and 5, of 40 are 2, 2, 2, and 5, and of 65 are 5 and 13. To find the GCF, we identify the common factors among the numbers, which are 5. Therefore, the GCF of 15, 40, and 65 is 5.
The GCF is 5.
The GCF of 15 and 65 is 5.
5
The GCF is 5.
5 is the GCF of 15 and 40.
The GCF of 20 and 40 is 20 The GCF of 15 and 30 is 15 The GCF of 15, 20, 30 and 40 is 5.
The GCF is 1.
The GCF is 5.
The GCF is 5.
The GCF is 5.
The GCF is 5.
The prime factorization of 40 is 23 x 5.The prime factorization of 65 is 5 x 13.The greatest common factor of 40 and 65 is 5.