What is the Greatest Common Factor of 71490 and 71505?

Greatest common factor (GCF) of 71490 and 71505 is 15.

GCF(71490,71505) = 15

We will now calculate the prime factors of 71490 and 71505, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71490 and 71505.

How to find the GCF of 71490 and 71505?

We will first find the prime factorization of 71490 and 71505. After we will calculate the factors of 71490 and 71505 and find the biggest common factor number .

Step-1: Prime Factorization of 71490

Prime factors of 71490 are 2, 3, 5, 2383. Prime factorization of 71490 in exponential form is:

71490 = 2¹ × 3¹ × 5¹ × 2383¹

Step-2: Prime Factorization of 71505

Prime factors of 71505 are 3, 5, 7, 227. Prime factorization of 71505 in exponential form is:

71505 = 3² × 5¹ × 7¹ × 227¹

Step-3: Factors of 71490

List of positive integer factors of 71490 that divides 71490 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2383, 4766, 7149, 11915, 14298, 23830, 35745

Step-4: Factors of 71505

List of positive integer factors of 71505 that divides 71490 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 227, 315, 681, 1135, 1589, 2043, 3405, 4767, 7945, 10215, 14301, 23835

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71490 and 71505. The biggest common factor number is the GCF number.
So the greatest common factor 71490 and 71505 is 15.

Also check out the Least Common Multiple of 71490 and 71505