Factors of 123

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Factors of

What are the factors of 123?

Answer

Factors of 123:
1, 3, 41, 123

4 factors · 123 = 3 × 41 · composite

Underlined — prime: 3, 41 · 1 — neither prime nor composite · others — composite

Factor pairs of 123

√123 ≈ 11.091341123

2 pairs: 1 × 123 · 3 × 41

Past √123 ≈ 11.09 every pair would repeat one already found — so checking stops at 11.

123 = 3 × 41 → (1 + 1) × (1 + 1) = 4 factors: add 1 to each exponent and multiply.

See Also

FAQ

What are the factors of 123?

Factors of 123: 1, 3, 41, 123

How many factors does 123 have?

Number 123 has 4 factors

How many factor pairs does 123 have?

Number 123 has 2 factor pairs

Is 123 a prime or composite number?

Composite: 123 = 3 × 41, so it has 4 factors — a prime has exactly two.

How many factors does 123 have excluding 1 and 123?

2: 3 and 41.