GCF (HCF) of 4 and 27

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What is the Greatest Common Divisor of 4 and 27?

Answer

GCF (HCF) of 4 and 27 is
1

Common factors: 1

Only 1 divides both: 4 and 27 share no prime factor.

Such numbers are called coprime (relatively prime); their LCM is just the product: 4 × 27 = 108.

4 = 22

27 = 33

Prime427Lowest power
222——
3—33—

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

GCF = 1

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GCF Table

Number 1Number 2GCF
484
491
4102
4124
4131
4142
4151
4164
4182
4204
4211
4231
4244
4251
4262
4271
4284
4302
4324
4351
4364
4371
4404
4422
4444
4451
4484
4502
4524
4531

FAQ

What is the Greatest Common Divisor of 4 and 27?

GCF (HCF) of 4 and 27 is 1

How to find the GCF of 4 and 27?

You can find the GCF of 4 and 27 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 4 and 27 is 1.

What prime factors do 4 and 27 share?

4 and 27 have no prime factor in common, so the only integer that divides both of them is 1 and their GCF is 1.

How does the GCF reduce the fraction 4/27?

Divide the numerator and the denominator by the GCF 1: 4 ÷ 1 = 4 and 27 ÷ 1 = 27. So 4/27 in lowest terms is 4/27.

Are 4 and 27 coprime?

Yes, 4 and 27 are coprime (relatively prime) because their Greatest Common Factor is 1.

See Also