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GCF (HCF) of 40 and 250

"Greatest Common Factor" Calculator

What is the Greatest Common Divisor of 40 and 250?

Answer

GCF (HCF) of 40 and 250 is

10

Common factors: 1, 2, 5, 10

10 divides both: 40 ÷ 10 = 4, 250 ÷ 10 = 25 — and 4 and 25 share no factor but 1, so no larger number divides both.

40 = 2³ × 5

250 = 2 × 5³

Prime	40	250	Lowest power
2	2³	2	2
5	5	5³	5

GCF = 2 × 5 = 10

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See Also

Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers
Least Common Multiple of 3 Numbers - Find the Least Common Multiple (LCM) of three numbers

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What is the GCF (HCF) of 40 and 250. The GCF of 40 and 250 is 10 — the biggest number that can divide both integers. Step-by-step GCF (GCD) calculation by factoring.

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GCF Table

Number 1	Number 2	GCF
40	100	20
40	110	10
40	120	40
40	125	5
40	130	10
40	135	5
40	144	8
40	155	5
40	160	40
40	165	5
40	180	20
40	210	10
40	220	20
40	240	40
40	245	5
40	250	10
40	260	20
40	265	5
40	275	5
40	305	5
40	310	10
40	315	5
40	320	40
40	325	5
40	330	10
40	335	5
40	340	20
40	345	5
40	350	10
40	375	5

FAQ

What is the Greatest Common Divisor of 40 and 250?

GCF (HCF) of 40 and 250 is 10

How to find the GCF of 40 and 250?

You can find the GCF of 40 and 250 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 40 and 250 is 10.

What prime factors do 40 and 250 share?

The prime factorizations of 40 and 250 have 2 × 5 in common, and multiplying those shared primes gives 10 — exactly the greatest common factor.

How does the GCF reduce the fraction 40/250?

Divide the numerator and the denominator by the GCF 10: 40 ÷ 10 = 4 and 250 ÷ 10 = 25. So 40/250 in lowest terms is 4/25.