GCF for 40 and 275

What is the Greatest Common Factor of 40 and 275?

Answer: GCF of 40 and 275 is 5

(Five)

Finding GCF for 40 and 275 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 275 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 275: 1, 5, 11, 25, 55, 275

So the Greatest Common Factor for 40 and 275 is 5

Finding GCF for 40 and 275 by Prime Factorization

The second method to find GCF for numbers 40 and 275 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 275: 5, 5, 11

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 275

GCF Table

Number 1Number 2GCF
2527525
262751
272751
282751
292751
302755
312751
322751
3327511
342751
352755
362751
372751
382751
392751
402755
412751
422751
432751
4427511
452755
462751
472751
482751
492751
5027525
512751
522751
532751
542751

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 275? (The answer is: 5). Select the first number (e.g. '40') and the second number (e.g. '275'). 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 275?

GCF of 40 and 275 is 5