What is the Greatest Common Factor of 39840 and 39857?

Greatest common factor (GCF) of 39840 and 39857 is 1.

GCF(39840,39857) = 1

We will now calculate the prime factors of 39840 and 39857, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39840 and 39857.

How to find the GCF of 39840 and 39857?

We will first find the prime factorization of 39840 and 39857. After we will calculate the factors of 39840 and 39857 and find the biggest common factor number .

Step-1: Prime Factorization of 39840

Prime factors of 39840 are 2, 3, 5, 83. Prime factorization of 39840 in exponential form is:

39840 = 2⁵ × 3¹ × 5¹ × 83¹

Step-2: Prime Factorization of 39857

Prime factors of 39857 are 39857. Prime factorization of 39857 in exponential form is:

39857 = 39857¹

Step-3: Factors of 39840

List of positive integer factors of 39840 that divides 39840 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 83, 96, 120, 160, 166, 240, 249, 332, 415, 480, 498, 664, 830, 996, 1245, 1328, 1660, 1992, 2490, 2656, 3320, 3984, 4980, 6640, 7968, 9960, 13280, 19920

Step-4: Factors of 39857

List of positive integer factors of 39857 that divides 39840 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39840 and 39857. The biggest common factor number is the GCF number.
So the greatest common factor 39840 and 39857 is 1.

Also check out the Least Common Multiple of 39840 and 39857