What is the Greatest Common Factor of 42987 and 42992?

Greatest common factor (GCF) of 42987 and 42992 is 1.

GCF(42987,42992) = 1

We will now calculate the prime factors of 42987 and 42992, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42987 and 42992.

How to find the GCF of 42987 and 42992?

We will first find the prime factorization of 42987 and 42992. After we will calculate the factors of 42987 and 42992 and find the biggest common factor number .

Step-1: Prime Factorization of 42987

Prime factors of 42987 are 3, 7, 23, 89. Prime factorization of 42987 in exponential form is:

42987 = 3¹ × 7¹ × 23¹ × 89¹

Step-2: Prime Factorization of 42992

Prime factors of 42992 are 2, 2687. Prime factorization of 42992 in exponential form is:

42992 = 2⁴ × 2687¹

Step-3: Factors of 42987

List of positive integer factors of 42987 that divides 42987 without a remainder.

1, 3, 7, 21, 23, 69, 89, 161, 267, 483, 623, 1869, 2047, 6141, 14329

Step-4: Factors of 42992

List of positive integer factors of 42992 that divides 42987 without a remainder.

1, 2, 4, 8, 16, 2687, 5374, 10748, 21496

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42987 and 42992. The biggest common factor number is the GCF number.
So the greatest common factor 42987 and 42992 is 1.

Also check out the Least Common Multiple of 42987 and 42992