GCF for 4 and 8

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 4 and 8?

Answer: GCF of 4 and 8 is 4

(Four)

Finding GCF for 4 and 8 using all factors (divisors) listing

The first method to find GCF for numbers 4 and 8 is to list all factors for both numbers and pick the highest common one:

All factors of 4: 1, 2, 4

All factors of 8: 1, 2, 4, 8

So the Greatest Common Factor for 4 and 8 is 4

Finding GCF for 4 and 8 by Prime Factorization

The second method to find GCF for numbers 4 and 8 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 4: 2, 2

All Prime Factors of 8: 2, 2, 2

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

Now we need to multiply them to find GCF: 2 × 2 = 4

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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 Divisor of 4 and 8? (The answer is: 4). Select the first number (e.g. '4') and the second number (e.g. '8'). 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

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
181
282
381
484
581
682
781
888
981
1082
1181
1284
1381
1482
1581
1688
1781
1882
1981
2084
2181
2282
2381
2488
2581
2682
2781
2884
2981
3082

FAQ

What is the Greatest common Divisor of 4 and 8?

GCF of 4 and 8 is 4

See Also