GCF for 40 and 625

What is the Greatest common Divisor of 40 and 625?

Answer: GCF of 40 and 625 is 5

(Five)

Finding GCF for 40 and 625 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 625 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 625: 1, 5, 25, 125, 625

So the Greatest Common Factor for 40 and 625 is 5

Finding GCF for 40 and 625 by Prime Factorization

The second method to find GCF for numbers 40 and 625 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 625: 5, 5, 5, 5

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 625

GCF Table

Number 1Number 2GCF
2562525
266251
276251
286251
296251
306255
316251
326251
336251
346251
356255
366251
376251
386251
396251
406255
416251
426251
436251
446251
456255
466251
476251
486251
496251
5062525
516251
526251
536251
546251

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 625? (The answer is: 5). Select the first number (e.g. '40') and the second number (e.g. '625'). 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 625?

GCF of 40 and 625 is 5