GCF for 70 and 745

What is the Greatest Common Factor of 70 and 745?

Answer: GCF of 70 and 745 is 5

(Five)

Finding GCF for 70 and 745 using all factors (divisors) listing

The first method to find GCF for numbers 70 and 745 is to list all factors for both numbers and pick the highest common one:

All factors of 70: 1, 2, 5, 7, 10, 14, 35, 70

All factors of 745: 1, 5, 149, 745

So the Greatest Common Factor for 70 and 745 is 5

Finding GCF for 70 and 745 by Prime Factorization

The second method to find GCF for numbers 70 and 745 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 70: 2, 5, 7

All Prime Factors of 745: 5, 149

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 70 and 745

GCF Table

Number 1Number 2GCF
557455
567451
577451
587451
597451
607455
617451
627451
637451
647451
657455
667451
677451
687451
697451
707455
717451
727451
737451
747451
757455
767451
777451
787451
797451
807455
817451
827451
837451
847451

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 70 and 745? (The answer is: 5). Select the first number (e.g. '70') and the second number (e.g. '745'). 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 70 and 745?

GCF of 70 and 745 is 5