GCF for 40 and 755

What is the Greatest common Divisor of 40 and 755?

Answer: GCF of 40 and 755 is 5

(Five)

Finding GCF for 40 and 755 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 755 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 755: 1, 5, 151, 755

So the Greatest Common Factor for 40 and 755 is 5

Finding GCF for 40 and 755 by Prime Factorization

The second method to find GCF for numbers 40 and 755 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 755: 5, 151

As we can see there is only one Prime Factor common to both numbers. It is 5

So 5 is the Greatest Common Factor of 40 and 755

GCF Table

Number 1Number 2GCF
257555
267551
277551
287551
297551
307555
317551
327551
337551
347551
357555
367551
377551
387551
397551
407555
417551
427551
437551
447551
457555
467551
477551
487551
497551
507555
517551
527551
537551
547551

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 40 and 755? (The answer is: 5). Select the first number (e.g. '40') and the second number (e.g. '755'). 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 Divisor of 40 and 755?

GCF of 40 and 755 is 5