GCF (HCF) of 3 and 16

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Greatest Common Factor of
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What is the Greatest Common Divisor of 3 and 16?

Answer

GCF (HCF) of 3 and 16 is
1

Common factors: 1

Only 1 divides both: 3 and 16 share no prime factor.

Such numbers are called coprime (relatively prime); their LCM is just the product: 3 × 16 = 48.

3 — prime

16 = 24

Prime316Lowest power
2—24—
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
311
321
333
341
351
363
371
381
393
3101
3111
3123
3141
3153
3161
3171
3183
3213
3221
3243
3251
3273
3291
3303
3341
3351
3363
3423
3453
3461

FAQ

What is the Greatest Common Divisor of 3 and 16?

GCF (HCF) of 3 and 16 is 1

How to find the GCF of 3 and 16?

You can find the GCF of 3 and 16 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 3 and 16 is 1.

What prime factors do 3 and 16 share?

3 and 16 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 3/16?

Divide the numerator and the denominator by the GCF 1: 3 ÷ 1 = 3 and 16 ÷ 1 = 16. So 3/16 in lowest terms is 3/16.

Are 3 and 16 coprime?

Yes, 3 and 16 are coprime (relatively prime) because their Greatest Common Factor is 1.

See Also