What is the Greatest Common Factor of 1445 and 1456?

Greatest common factor (GCF) of 1445 and 1456 is 1.

GCF(1445,1456) = 1

We will now calculate the prime factors of 1445 and 1456, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1445 and 1456.

How to find the GCF of 1445 and 1456?

We will first find the prime factorization of 1445 and 1456. After we will calculate the factors of 1445 and 1456 and find the biggest common factor number .

Step-1: Prime Factorization of 1445

Prime factors of 1445 are 5, 17. Prime factorization of 1445 in exponential form is:

1445 = 5¹ × 17²

Step-2: Prime Factorization of 1456

Prime factors of 1456 are 2, 7, 13. Prime factorization of 1456 in exponential form is:

1456 = 2⁴ × 7¹ × 13¹

Step-3: Factors of 1445

List of positive integer factors of 1445 that divides 1445 without a remainder.

1, 5, 17, 85, 289

Step-4: Factors of 1456

List of positive integer factors of 1456 that divides 1445 without a remainder.

1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1445 and 1456. The biggest common factor number is the GCF number.
So the greatest common factor 1445 and 1456 is 1.

Also check out the Least Common Multiple of 1445 and 1456