GCF for 16 and 45

What is the Greatest common Divisor of 16 and 45?

Answer: GCF of 16 and 45 is 1

(One)

Finding GCF for 16 and 45 using all factors (divisors) listing

The first method to find GCF for numbers 16 and 45 is to list all factors for both numbers and pick the highest common one:

All factors of 16: 1, 2, 4, 8, 16

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

So the Greatest Common Factor for 16 and 45 is 1

Finding GCF for 16 and 45 by Prime Factorization

See Also

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 16 and 45? (The answer is: 1). Select the first number (e.g. '16') and the second number (e.g. '45'). 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
1451
2451
3453
4451
545
6453
7451
845
945
1045
11451
1245
13451
1445
1545
1645
17451
1845
19451
2045
2145
2245
23451
2445
2545
2645
2745
2845
2945
3045

FAQ

What is the Greatest common Divisor of 16 and 45?

GCF of 16 and 45 is 1