GCF (HCF) of 9 and 24

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Greatest Common Factor of
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What is the Greatest Common Divisor of 9 and 24?

Answer

GCF (HCF) of 9 and 24 is
3

Common factors: 1, 3

3 divides both: 9 ÷ 3 = 3, 24 ÷ 3 = 8 — and 3 and 8 share no factor but 1, so no larger number divides both.

9 = 32

24 = 23 × 3

Prime924Lowest power
2—23—
33233

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

GCF = 3

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GCF Table

Number 1Number 2GCF
971
981
9101
9111
9123
9131
9141
9153
9161
9171
9189
9191
9201
9213
9221
9243
9251
9261
9279
9281
9291
9303
9341
9351
9369
9393
9401
9423
9459
9461

FAQ

What is the Greatest Common Divisor of 9 and 24?

GCF (HCF) of 9 and 24 is 3

How to find the GCF of 9 and 24?

You can find the GCF of 9 and 24 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 9 and 24 is 3.

What prime factors do 9 and 24 share?

The prime factorizations of 9 and 24 have 3 in common, and multiplying those shared primes gives 3 — exactly the greatest common factor.

How does the GCF reduce the fraction 9/24?

Divide the numerator and the denominator by the GCF 3: 9 ÷ 3 = 3 and 24 ÷ 3 = 8. So 9/24 in lowest terms is 3/8.

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