What is the Greatest Common Factor of 61400 and 61409?

Greatest common factor (GCF) of 61400 and 61409 is 1.

GCF(61400,61409) = 1

We will now calculate the prime factors of 61400 and 61409, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61400 and 61409.

How to find the GCF of 61400 and 61409?

We will first find the prime factorization of 61400 and 61409. After we will calculate the factors of 61400 and 61409 and find the biggest common factor number .

Step-1: Prime Factorization of 61400

Prime factors of 61400 are 2, 5, 307. Prime factorization of 61400 in exponential form is:

61400 = 2³ × 5² × 307¹

Step-2: Prime Factorization of 61409

Prime factors of 61409 are 61409. Prime factorization of 61409 in exponential form is:

61409 = 61409¹

Step-3: Factors of 61400

List of positive integer factors of 61400 that divides 61400 without a remainder.

1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 307, 614, 1228, 1535, 2456, 3070, 6140, 7675, 12280, 15350, 30700

Step-4: Factors of 61409

List of positive integer factors of 61409 that divides 61400 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61400 and 61409. The biggest common factor number is the GCF number.
So the greatest common factor 61400 and 61409 is 1.

Also check out the Least Common Multiple of 61400 and 61409