Prime Factorization of 261

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What is the Prime Factorization of 261?

Answer

Prime Factors of 261:

3, 3, 29

261 = 3² × 29 · composite · 6 factors · 3 prime factors counting repeats

Division ladder

261	3
87	3
29	29
1

Left: what is left; right: the smallest prime that divides it; 1 at the bottom.

Second way — factor tree

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See Also

Factors of a Number - List all Factors and Factor Pairs of a Number
Prime Number Checker - Find out whether a given number is Prime or not
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

Recalculate with different values ↑

Prime Factorization Table

Number	Prime Factors
246	2, 3, 41
247	13, 19
248	2³ × 31
249	3, 83
250	2 × 5³
251	251
252	2² × 3² × 7
253	11, 23
254	2, 127
255	3, 5, 17
256	2⁸
257	257
258	2, 3, 43
259	7, 37
260	2² × 5 × 13
261	3² × 29
262	2, 131
263	263
264	2³ × 3 × 11
265	5, 53
266	2, 7, 19
267	3, 89
268	2² × 67
269	269
270	2 × 3³ × 5
271	271
272	2⁴ × 17
273	3, 7, 13
274	2, 137
275	5² × 11

FAQ

What is the Prime Factorization of 261?

Prime Factors of 261: 3, 3, 29

How many prime factors does 261 have?

Number 261 has 3 prime factors counting repeats; 2 different: 3 and 29.

What is the Prime Factorization of 261 in exponential form?

The Prime Factorization of the number 261 in the exponential form is: 3² × 29