GCF for 45 and 49

What is the Greatest common Divisor of 45 and 49?

Answer: GCF of 45 and 49 is 1

(One)

Finding GCF for 45 and 49 using all factors (divisors) listing

The first method to find GCF for numbers 45 and 49 is to list all factors for both numbers and pick the highest common one:

All factors of 45: 1, 3, 5, 9, 15, 45

All factors of 49: 1, 7, 49

So the Greatest Common Factor for 45 and 49 is 1

Finding GCF for 45 and 49 by Prime Factorization

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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 45 and 49? (The answer is: 1). Select the first number (e.g. '45') and the second number (e.g. '49'). 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

GCF Table

Number 1Number 2GCF
30491
31491
3249
33491
34491
3549
3649
37491
38491
39491
40491
41491
4249
43491
44491
4549
46491
47491
4849
494949
50491
51491
52491
53491
54491
55491
56497
57491
58491
59491

FAQ

What is the Greatest common Divisor of 45 and 49?

GCF of 45 and 49 is 1