GCF Calculator

Greatest Common Factor Calculator (GCF calculator)

What is GCF? GCF stands for greatest common factor in mathematics, and it is the largest number that is divisible by two or more other numbers. It is also known as HCF (highest common factor), GCD (greatest common divisor), and GCD (greatest common denominator). The GCF calculator precisely calculates the highest or greatest common of two or more given numbers in no time.

GCF Calculator

Greatest Common Factor (GCF)

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How to find the GCF?

There are several methods that can be used to find the GCF of two or more numbers such as the factorization method and the prime factorization method. However, Mycalcu's GCF calculator uses the factorization method to find out the highest common factors.

How to use the GCF Calculator?

Enter the 1st number in the 1st box
Enter the 2nd value in the 2nd box
Click on calculate to get the result

How to calculate Greatest Common Factors (GCF)?

Follow the given below simple steps to quickly and accurately calculate the GCF of two numbers.

List down all the factors of all the numbers
Note down all the common factors
The greatest number that is in the common factors is your answer

Let's look into an example for better clarification of the concept, let's find the GCF of (18, 27)

Factors of the first variable which is 18 are 1, 2, 3, 6, 9, 18.

Factors of the second variable which is 27 are 1, 3, 9, 27.

The common factors of 18 and 27 are 1, 3, and 9.

Therefore, the GCF (18,27) is 9.

value1	value2	GCF
3	100	1
6	100	2
9	100	1
12	100	4
15	100	5
18	100	2
21	100	1
24	100	4
27	100	1
30	100	10
33	100	1
36	100	4
39	100	1
42	100	2
45	100	5
48	100	4
51	100	1
54	100	2
57	100	1
60	100	20
63	100	1
66	100	2
69	100	1
72	100	4
75	100	25
78	100	2
81	100	1
84	100	4
87	100	1
90	100	10
93	100	1
96	100	4
99	100	1
102	100	2
105	100	5
108	100	4
111	100	1
114	100	2
117	100	1
120	100	20
123	100	1
126	100	2
129	100	1
132	100	4
135	100	5
138	100	2
141	100	1
144	100	4
147	100	1
150	100	50
153	100	1
156	100	4
159	100	1
162	100	2
165	100	5
168	100	4
171	100	1
174	100	2
177	100	1
180	100	20
183	100	1
186	100	2
189	100	1
192	100	4
195	100	5
198	100	2
201	100	1
204	100	4
207	100	1
210	100	10
213	100	1
216	100	4
219	100	1
222	100	2
225	100	25
228	100	4
231	100	1
234	100	2
237	100	1
240	100	20
243	100	1
246	100	2
249	100	1
252	100	4
255	100	5
258	100	2
261	100	1
264	100	4
267	100	1
270	100	10
273	100	1
276	100	4
279	100	1
282	100	2
285	100	5
288	100	4
291	100	1
294	100	2
297	100	1
300	100	100

gcf of 1 and 3

gcf of 5 and 10

gcf of 10 and 20

gcf of 50 and 55

gcf of 90 and 65

gcf of 105 and 115

gcf of 120 and 150

gcf of 150 and 210

gcf of 225 and 230

gcf of 450 and 230

gcf of 500 and 330

gcf of 800 and 630

gcf of 990 and 950

gcf of 1530 and 950

gcf of 2550 and 1550

gcf of 3005 and 1005

gcf of 7605 and 5040

value1	value2	GCF
3	100	1
6	100	2
9	100	1
12	100	4
15	100	5
18	100	2
21	100	1
24	100	4
27	100	1
30	100	10
33	100	1
36	100	4
39	100	1
42	100	2
45	100	5
48	100	4
51	100	1
54	100	2
57	100	1
60	100	20
63	100	1
66	100	2
69	100	1
72	100	4
75	100	25
78	100	2
81	100	1
84	100	4
87	100	1
90	100	10
93	100	1
96	100	4
99	100	1
102	100	2
105	100	5
108	100	4
111	100	1
114	100	2
117	100	1
120	100	20
123	100	1
126	100	2
129	100	1
132	100	4
135	100	5
138	100	2
141	100	1
144	100	4
147	100	1
150	100	50
153	100	1
156	100	4
159	100	1
162	100	2
165	100	5
168	100	4
171	100	1
174	100	2
177	100	1
180	100	20
183	100	1
186	100	2
189	100	1
192	100	4
195	100	5
198	100	2
201	100	1
204	100	4
207	100	1
210	100	10
213	100	1
216	100	4
219	100	1
222	100	2
225	100	25
228	100	4
231	100	1
234	100	2
237	100	1
240	100	20
243	100	1
246	100	2
249	100	1
252	100	4
255	100	5
258	100	2
261	100	1
264	100	4
267	100	1
270	100	10
273	100	1
276	100	4
279	100	1
282	100	2
285	100	5
288	100	4
291	100	1
294	100	2
297	100	1
300	100	100

value1	value2	GCF
3	100	1
6	100	2
9	100	1
12	100	4
15	100	5
18	100	2
21	100	1
24	100	4
27	100	1
30	100	10
33	100	1
36	100	4
39	100	1
42	100	2
45	100	5
48	100	4
51	100	1
54	100	2
57	100	1
60	100	20
63	100	1
66	100	2
69	100	1
72	100	4
75	100	25
78	100	2
81	100	1
84	100	4
87	100	1
90	100	10
93	100	1
96	100	4
99	100	1
102	100	2
105	100	5
108	100	4
111	100	1
114	100	2
117	100	1
120	100	20
123	100	1
126	100	2
129	100	1
132	100	4
135	100	5
138	100	2
141	100	1
144	100	4
147	100	1
150	100	50
153	100	1
156	100	4
159	100	1
162	100	2
165	100	5
168	100	4
171	100	1
174	100	2
177	100	1
180	100	20
183	100	1
186	100	2
189	100	1
192	100	4
195	100	5
198	100	2
201	100	1
204	100	4
207	100	1
210	100	10
213	100	1
216	100	4
219	100	1
222	100	2
225	100	25
228	100	4
231	100	1
234	100	2
237	100	1
240	100	20
243	100	1
246	100	2
249	100	1
252	100	4
255	100	5
258	100	2
261	100	1
264	100	4
267	100	1
270	100	10
273	100	1
276	100	4
279	100	1
282	100	2
285	100	5
288	100	4
291	100	1
294	100	2
297	100	1
300	100	100

value1	value2	GCF
3	100	1
6	100	2
9	100	1
12	100	4
15	100	5
18	100	2
21	100	1
24	100	4
27	100	1
30	100	10
33	100	1
36	100	4
39	100	1
42	100	2
45	100	5
48	100	4
51	100	1
54	100	2
57	100	1
60	100	20
63	100	1
66	100	2
69	100	1
72	100	4
75	100	25
78	100	2
81	100	1
84	100	4
87	100	1
90	100	10
93	100	1
96	100	4
99	100	1
102	100	2
105	100	5
108	100	4
111	100	1
114	100	2
117	100	1
120	100	20
123	100	1
126	100	2
129	100	1
132	100	4
135	100	5
138	100	2
141	100	1
144	100	4
147	100	1
150	100	50
153	100	1
156	100	4
159	100	1
162	100	2
165	100	5
168	100	4
171	100	1
174	100	2
177	100	1
180	100	20
183	100	1
186	100	2
189	100	1
192	100	4
195	100	5
198	100	2
201	100	1
204	100	4
207	100	1
210	100	10
213	100	1
216	100	4
219	100	1
222	100	2
225	100	25
228	100	4
231	100	1
234	100	2
237	100	1
240	100	20
243	100	1
246	100	2
249	100	1
252	100	4
255	100	5
258	100	2
261	100	1
264	100	4
267	100	1
270	100	10
273	100	1
276	100	4
279	100	1
282	100	2
285	100	5
288	100	4
291	100	1
294	100	2
297	100	1
300	100	100