What is the Greatest Common Factor of 61020 and 61040?

Greatest common factor (GCF) of 61020 and 61040 is 20.

GCF(61020,61040) = 20

We will now calculate the prime factors of 61020 and 61040, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61020 and 61040.

How to find the GCF of 61020 and 61040?

We will first find the prime factorization of 61020 and 61040. After we will calculate the factors of 61020 and 61040 and find the biggest common factor number .

Step-1: Prime Factorization of 61020

Prime factors of 61020 are 2, 3, 5, 113. Prime factorization of 61020 in exponential form is:

61020 = 2² × 3³ × 5¹ × 113¹

Step-2: Prime Factorization of 61040

Prime factors of 61040 are 2, 5, 7, 109. Prime factorization of 61040 in exponential form is:

61040 = 2⁴ × 5¹ × 7¹ × 109¹

Step-3: Factors of 61020

List of positive integer factors of 61020 that divides 61020 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 113, 135, 180, 226, 270, 339, 452, 540, 565, 678, 1017, 1130, 1356, 1695, 2034, 2260, 3051, 3390, 4068, 5085, 6102, 6780, 10170, 12204, 15255, 20340, 30510

Step-4: Factors of 61040

List of positive integer factors of 61040 that divides 61020 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1526, 1744, 2180, 3052, 3815, 4360, 6104, 7630, 8720, 12208, 15260, 30520

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61020 and 61040. The biggest common factor number is the GCF number.
So the greatest common factor 61020 and 61040 is 20.

Also check out the Least Common Multiple of 61020 and 61040