What is the GCF of 16, 32 and 40?

What's the Greatest Common Factor (GCF) of 16, 32 and 40?

Answer

GCF of 16, 32 and 40 is

8

Common factors: 1, 2, 4, 8

8 divides all three: 16 ÷ 8 = 2, 32 ÷ 8 = 4, 40 ÷ 8 = 5 — and 2, 4 and 5 have no factor but 1 common to all of them, so no larger number divides all three.

16 = 2⁴

32 = 2⁵

40 = 2³ × 5

Prime	16	32	40	Lowest power
2	2⁴	2⁵	2³	2³
5	—	—	5	—

— = power 0: the prime is not a factor of this number, so it cannot be in the GCF.

GCF = 2³ = 8

More with these numbers

Related Calculations

GCF Table

1st	2nd	3rd	GCF
16	25	32	1
16	26	32	2
16	27	32	1
16	28	32	4
16	29	32	1
16	30	32	2
16	31	32	1
16	32	32	16
16	32	33	1
16	32	34	2
16	32	35	1
16	32	36	4
16	32	37	1
16	32	38	2
16	32	39	1
16	32	40	8
16	32	41	1
16	32	42	2
16	32	43	1
16	32	44	4
16	32	45	1
16	32	46	2
16	32	47	1
16	32	48	16
16	32	49	1
16	32	50	2
16	32	51	1
16	32	52	4
16	32	53	1
16	32	54	2

GCF for 16, 32 and 40

What's the Greatest Common Factor (GCF) of 16, 32 and 40?

More with these numbers

Related Calculations

See Also

GCF Table

FAQ

What's the Greatest Common Factor (GCF) of 16, 32 and 40?

What prime factors do 16, 32 and 40 share?

Can you get the GCF of 16, 32 and 40 two numbers at a time?

How does the GCF simplify the ratio 16 : 32 : 40?

See Also

1st	2nd	3rd	GCF
16	25	32	1
16	26	32	2
16	27	32	1
16	28	32	4
16	29	32	1
16	30	32	2
16	31	32	1
16	32	32	16
16	32	33	1
16	32	34	2
16	32	35	1
16	32	36	4
16	32	37	1
16	32	38	2
16	32	39	1
16	32	40	8
16	32	41	1
16	32	42	2
16	32	43	1
16	32	44	4
16	32	45	1
16	32	46	2
16	32	47	1
16	32	48	16
16	32	49	1
16	32	50	2
16	32	51	1
16	32	52	4
16	32	53	1
16	32	54	2

1st	2nd	3rd	GCF
16	25	32	1
16	26	32	2
16	27	32	1
16	28	32	4
16	29	32	1
16	30	32	2
16	31	32	1
16	32	32	16
16	32	33	1
16	32	34	2
16	32	35	1
16	32	36	4
16	32	37	1
16	32	38	2
16	32	39	1
16	32	40	8
16	32	41	1
16	32	42	2
16	32	43	1
16	32	44	4
16	32	45	1
16	32	46	2
16	32	47	1
16	32	48	16
16	32	49	1
16	32	50	2
16	32	51	1
16	32	52	4
16	32	53	1
16	32	54	2

1st	2nd	3rd	GCF
16	25	32	1
16	26	32	2
16	27	32	1
16	28	32	4
16	29	32	1
16	30	32	2
16	31	32	1
16	32	32	16
16	32	33	1
16	32	34	2
16	32	35	1
16	32	36	4
16	32	37	1
16	32	38	2
16	32	39	1
16	32	40	8
16	32	41	1
16	32	42	2
16	32	43	1
16	32	44	4
16	32	45	1
16	32	46	2
16	32	47	1
16	32	48	16
16	32	49	1
16	32	50	2
16	32	51	1
16	32	52	4
16	32	53	1
16	32	54	2