GCF for 40 and 880

What is the Greatest Common Factor of 40 and 880?

Answer: GCF of 40 and 880 is 40

(Forty)

Finding GCF for 40 and 880 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 880 is to list all factors for both numbers and pick the highest common one:

All factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

All factors of 880: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880

So the Greatest Common Factor for 40 and 880 is 40

Finding GCF for 40 and 880 by Prime Factorization

The second method to find GCF for numbers 40 and 880 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 40: 2, 2, 2, 5

All Prime Factors of 880: 2, 2, 2, 2, 5, 11

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

Now we need to multiply them to find GCF: 2 × 2 × 2 × 5 = 40

GCF Table

Number 1Number 2GCF
258805
268802
278801
288804
298801
3088010
318801
3288016
3388011
348802
358805
368804
378801
388802
398801
4088040
418801
428802
438801
4488044
458805
468802
478801
4888016
498801
5088010
518801
528804
538801
548802

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 40 and 880? (The answer is: 40). Select the first number (e.g. '40') and the second number (e.g. '880'). 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 40 and 880?

GCF of 40 and 880 is 40