What is the Greatest Common Factor of 97820 and 97840?

Greatest common factor (GCF) of 97820 and 97840 is 20.

GCF(97820,97840) = 20

We will now calculate the prime factors of 97820 and 97840, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97820 and 97840.

How to find the GCF of 97820 and 97840?

We will first find the prime factorization of 97820 and 97840. After we will calculate the factors of 97820 and 97840 and find the biggest common factor number .

Step-1: Prime Factorization of 97820

Prime factors of 97820 are 2, 5, 67, 73. Prime factorization of 97820 in exponential form is:

97820 = 2² × 5¹ × 67¹ × 73¹

Step-2: Prime Factorization of 97840

Prime factors of 97840 are 2, 5, 1223. Prime factorization of 97840 in exponential form is:

97840 = 2⁴ × 5¹ × 1223¹

Step-3: Factors of 97820

List of positive integer factors of 97820 that divides 97820 without a remainder.

1, 2, 4, 5, 10, 20, 67, 73, 134, 146, 268, 292, 335, 365, 670, 730, 1340, 1460, 4891, 9782, 19564, 24455, 48910

Step-4: Factors of 97840

List of positive integer factors of 97840 that divides 97820 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1223, 2446, 4892, 6115, 9784, 12230, 19568, 24460, 48920

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97820 and 97840. The biggest common factor number is the GCF number.
So the greatest common factor 97820 and 97840 is 20.

Also check out the Least Common Multiple of 97820 and 97840