What is the Greatest Common Factor of 74740 and 74760?

Greatest common factor (GCF) of 74740 and 74760 is 20.

GCF(74740,74760) = 20

We will now calculate the prime factors of 74740 and 74760, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 74740 and 74760.

How to find the GCF of 74740 and 74760?

We will first find the prime factorization of 74740 and 74760. After we will calculate the factors of 74740 and 74760 and find the biggest common factor number .

Step-1: Prime Factorization of 74740

Prime factors of 74740 are 2, 5, 37, 101. Prime factorization of 74740 in exponential form is:

74740 = 2² × 5¹ × 37¹ × 101¹

Step-2: Prime Factorization of 74760

Prime factors of 74760 are 2, 3, 5, 7, 89. Prime factorization of 74760 in exponential form is:

74760 = 2³ × 3¹ × 5¹ × 7¹ × 89¹

Step-3: Factors of 74740

List of positive integer factors of 74740 that divides 74740 without a remainder.

1, 2, 4, 5, 10, 20, 37, 74, 101, 148, 185, 202, 370, 404, 505, 740, 1010, 2020, 3737, 7474, 14948, 18685, 37370

Step-4: Factors of 74760

List of positive integer factors of 74760 that divides 74740 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 89, 105, 120, 140, 168, 178, 210, 267, 280, 356, 420, 445, 534, 623, 712, 840, 890, 1068, 1246, 1335, 1780, 1869, 2136, 2492, 2670, 3115, 3560, 3738, 4984, 5340, 6230, 7476, 9345, 10680, 12460, 14952, 18690, 24920, 37380

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 74740 and 74760. The biggest common factor number is the GCF number.
So the greatest common factor 74740 and 74760 is 20.

Also check out the Least Common Multiple of 74740 and 74760