Factors of 172

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What are the factors of 172?

Answer

Factors of 172:

1, 2, 4, 43, 86, 172

6 factors · 172 = 2² × 43 · composite

Underlined — prime: 2, 43 · 1 — neither prime nor composite · others — composite

Factor pairs of 172

3 pairs: 1 × 172 · 2 × 86 · 4 × 43

Past √172 ≈ 13.11 every pair would repeat one already found — so checking stops at 13.

172 = 2² × 43 → (2 + 1) × (1 + 1) = 6 factors: add 1 to each exponent and multiply.

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See Also

Prime Number Checker - Find out whether a given number is Prime or not
Prime Factorization - Prime Factorization Calculator
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

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Factors Table

Number	Factors
157	1, 157
158	1, 2, 79, 158
159	1, 3, 53, 159
160	1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160
161	1, 7, 23, 161
162	1, 2, 3, 6, 9, 18, 27, 54, 81, 162
163	1, 163
164	1, 2, 4, 41, 82, 164
165	1, 3, 5, 11, 15, 33, 55, 165
166	1, 2, 83, 166
167	1, 167
168	1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
169	1, 13, 169
170	1, 2, 5, 10, 17, 34, 85, 170
171	1, 3, 9, 19, 57, 171
172	1, 2, 4, 43, 86, 172
173	1, 173
174	1, 2, 3, 6, 29, 58, 87, 174
175	1, 5, 7, 25, 35, 175
176	1, 2, 4, 8, 11, 16, 22, 44, 88, 176
177	1, 3, 59, 177
178	1, 2, 89, 178
179	1, 179
180	1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
181	1, 181
182	1, 2, 7, 13, 14, 26, 91, 182
183	1, 3, 61, 183
184	1, 2, 4, 8, 23, 46, 92, 184
185	1, 5, 37, 185
186	1, 2, 3, 6, 31, 62, 93, 186

FAQ

What are the factors of 172?

Factors of 172: 1, 2, 4, 43, 86, 172

How many factors does 172 have?

Number 172 has 6 factors

How many factor pairs does 172 have?

Number 172 has 3 factor pairs

Is 172 a prime or composite number?

Composite: 172 = 2² × 43, so it has 6 factors — a prime has exactly two.

How many factors does 172 have excluding 1 and 172?

4: 2, 4, 43 and 86.