GCF for 90 and 230

What is the Greatest Common Factor of 90 and 230?

Answer: GCF of 90 and 230 is 10

(Ten)

Finding GCF for 90 and 230 using all factors (divisors) listing

The first method to find GCF for numbers 90 and 230 is to list all factors for both numbers and pick the highest common one:

All factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

All factors of 230: 1, 2, 5, 10, 23, 46, 115, 230

So the Greatest Common Factor for 90 and 230 is 10

Finding GCF for 90 and 230 by Prime Factorization

The second method to find GCF for numbers 90 and 230 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 90: 2, 3, 3, 5

All Prime Factors of 230: 2, 5, 23

As we can see there are Prime Factors common to both numbers: 2, 5

Now we need to multiply them to find GCF: 2 × 5 = 10

GCF Table

Number 1Number 2GCF
752305
762302
772301
782302
792301
8023010
812301
822302
832301
842302
852305
862302
872301
882302
892301
9023010
912301
9223046
932301
942302
952305
962302
972301
982302
992301
10023010
1012301
1022302
1032301
1042302

About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest Common Factor of 90 and 230? (The answer is: 10). Select the first number (e.g. '90') and the second number (e.g. '230'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

FAQ

What is the Greatest Common Factor of 90 and 230?

GCF of 90 and 230 is 10