What is the Greatest Common Factor of 61438 and 61458?

Greatest common factor (GCF) of 61438 and 61458 is 2.

GCF(61438,61458) = 2

We will now calculate the prime factors of 61438 and 61458, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61438 and 61458.

How to find the GCF of 61438 and 61458?

We will first find the prime factorization of 61438 and 61458. After we will calculate the factors of 61438 and 61458 and find the biggest common factor number .

Step-1: Prime Factorization of 61438

Prime factors of 61438 are 2, 13, 17, 139. Prime factorization of 61438 in exponential form is:

61438 = 2¹ × 13¹ × 17¹ × 139¹

Step-2: Prime Factorization of 61458

Prime factors of 61458 are 2, 3, 10243. Prime factorization of 61458 in exponential form is:

61458 = 2¹ × 3¹ × 10243¹

Step-3: Factors of 61438

List of positive integer factors of 61438 that divides 61438 without a remainder.

1, 2, 13, 17, 26, 34, 139, 221, 278, 442, 1807, 2363, 3614, 4726, 30719

Step-4: Factors of 61458

List of positive integer factors of 61458 that divides 61438 without a remainder.

1, 2, 3, 6, 10243, 20486, 30729

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61438 and 61458. The biggest common factor number is the GCF number.
So the greatest common factor 61438 and 61458 is 2.

Also check out the Least Common Multiple of 61438 and 61458