What is the Greatest Common Factor of 83770 and 83780?

Greatest common factor (GCF) of 83770 and 83780 is 10.

GCF(83770,83780) = 10

We will now calculate the prime factors of 83770 and 83780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 83770 and 83780.

How to find the GCF of 83770 and 83780?

We will first find the prime factorization of 83770 and 83780. After we will calculate the factors of 83770 and 83780 and find the biggest common factor number .

Step-1: Prime Factorization of 83770

Prime factors of 83770 are 2, 5, 8377. Prime factorization of 83770 in exponential form is:

83770 = 2¹ × 5¹ × 8377¹

Step-2: Prime Factorization of 83780

Prime factors of 83780 are 2, 5, 59, 71. Prime factorization of 83780 in exponential form is:

83780 = 2² × 5¹ × 59¹ × 71¹

Step-3: Factors of 83770

List of positive integer factors of 83770 that divides 83770 without a remainder.

1, 2, 5, 10, 8377, 16754, 41885

Step-4: Factors of 83780

List of positive integer factors of 83780 that divides 83770 without a remainder.

1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 355, 590, 710, 1180, 1420, 4189, 8378, 16756, 20945, 41890

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 83770 and 83780. The biggest common factor number is the GCF number.
So the greatest common factor 83770 and 83780 is 10.

Also check out the Least Common Multiple of 83770 and 83780