GCF for 40 and 465

What is the Greatest Common Factor of 40 and 465?

Answer: GCF of 40 and 465 is 5

(Five)

Finding GCF for 40 and 465 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 465 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 465: 1, 3, 5, 15, 31, 93, 155, 465

So the Greatest Common Factor for 40 and 465 is 5

Finding GCF for 40 and 465 by Prime Factorization

The second method to find GCF for numbers 40 and 465 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 465: 3, 5, 31

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 465

GCF Table

Number 1Number 2GCF
254655
264651
274653
284651
294651
3046515
3146531
324651
334653
344651
354655
364653
374651
384651
394653
404655
414651
424653
434651
444651
4546515
464651
474651
484653
494651
504655
514653
524651
534651
544653

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 465? (The answer is: 5). Select the first number (e.g. '40') and the second number (e.g. '465'). 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 465?

GCF of 40 and 465 is 5