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Is 117 a prime number?

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Is 117 a prime or composite number?

Answer

Number 117 is not a Prime

117 = 3² × 13

117 has 6 divisors — 1, 3, 9, 13, 39 and 117; a prime has exactly two: 1 and itself.

Primes up to √117

10² = 100 ≤ 117 < 121 = 11², so it is enough to try primes up to 10

÷2 does not divide
÷3 divides

117 ÷ 3 = 39 — 3 divides 117, so 117 is composite

Nearest primes: 113 and 127

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See Also

Factors of a Number - List all Factors and Factor Pairs of a Number
Prime Factorization - Prime Factorization Calculator
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

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Is 117 a prime number? Is 117 a prime number? 117 is a composite number. Check if any number is prime or composite with our free online prime checker.

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Prime numbers list

Number	Is Prime
101	Yes
102	No: 2 × 3 × 17
103	Yes
104	No: 2³ × 13
105	No: 3 × 5 × 7
106	No: 2 × 53
107	Yes
108	No: 2² × 3³
109	Yes
110	No: 2 × 5 × 11
111	No: 3 × 37
112	No: 2⁴ × 7
113	Yes
114	No: 2 × 3 × 19
115	No: 5 × 23
117	No: 3² × 13
119	No: 7 × 17
120	No: 2³ × 3 × 5
121	No: 11²
122	No: 2 × 61
123	No: 3 × 41
125	No: 5³
126	No: 2 × 3² × 7
127	Yes
128	No: 2⁷
129	No: 3 × 43
130	No: 2 × 5 × 13
131	Yes
132	No: 2² × 3 × 11
133	No: 7 × 19

FAQ

Is 117 a prime or composite number?

Number 117 is not a Prime

How many factors are in a number 117?

6

How to check if 117 is prime?

Divide 117 by the primes in order: 10² = 100 ≤ 117 < 121 = 11², so it is enough to try primes up to 10. The first one that divides it is 3: 117 ÷ 3 = 39, so 117 is composite.