GCF (HCF) of 9 and 27

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What is the Greatest Common Divisor of 9 and 27?

Answer

GCF (HCF) of 9 and 27 is
9

Common factors: 1, 3, 9

9 divides 27 (27 ÷ 9 = 3), so the GCF is the smaller number itself.

9 = 32

27 = 33

Prime927Lowest power
3323332

GCF = 32 = 9

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GCF Table

Number 1Number 2GCF
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
9483
9491
9501

FAQ

What is the Greatest Common Divisor of 9 and 27?

GCF (HCF) of 9 and 27 is 9

How to find the GCF of 9 and 27?

You can find the GCF of 9 and 27 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 9 and 27 is 9.

What prime factors do 9 and 27 share?

The prime factorizations of 9 and 27 have 3 × 3 in common, and multiplying those shared primes gives 9 — exactly the greatest common factor.

How does the GCF reduce the fraction 9/27?

Divide the numerator and the denominator by the GCF 9: 9 ÷ 9 = 1 and 27 ÷ 9 = 3. So 9/27 in lowest terms is 1/3.

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