What is the Greatest Common Factor of 455 and 461?

Greatest common factor (GCF) of 455 and 461 is 1.

GCF(455,461) = 1

We will now calculate the prime factors of 455 and 461, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 455 and 461.

How to find the GCF of 455 and 461?

We will first find the prime factorization of 455 and 461. After we will calculate the factors of 455 and 461 and find the biggest common factor number .

Step-1: Prime Factorization of 455

Prime factors of 455 are 5, 7, 13. Prime factorization of 455 in exponential form is:

455 = 5¹ × 7¹ × 13¹

Step-2: Prime Factorization of 461

Prime factors of 461 are 461. Prime factorization of 461 in exponential form is:

461 = 461¹

Step-3: Factors of 455

List of positive integer factors of 455 that divides 455 without a remainder.

1, 5, 7, 13, 35, 65, 91

Step-4: Factors of 461

List of positive integer factors of 461 that divides 455 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 455 and 461. The biggest common factor number is the GCF number.
So the greatest common factor 455 and 461 is 1.

Also check out the Least Common Multiple of 455 and 461