Is 178 a prime number?

No, 178 is composite. It is divisible by 2 and 89.

Factors of 178

The factors of 178 are 1, 2, 89 and 178. That is 4 factors in total.

A factor of 178 is a whole number that divides 178 exactly, with no remainder. 178 is a composite number because it has factors other than 1 and itself.

Factor pairs of 178

Two numbers that multiply to give 178:

1 × 178 = 178
2 × 89 = 178

Prime factorization of 178

178 = 2 × 89. The prime factors of 178 are 2 and 89.

Quick facts about 178

Is 178 prime? No.
Even or odd: even.
Sum of its factors: 1 + 2 + 89 + 178 = 270.

Factors of nearby numbers

Number	Factors
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
179	1, 179
180	18 factors
181	1, 181
182	1, 2, 7, 13, 14, 26, 91, 182

More about 178: square root of 178 · 178 in binary.

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