Prime Factorization of 55

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Prime Factors of

What is the Prime Factorization of 55?

Answer

Prime Factors of 55:
5, 11

55 = 5 × 11 · composite · 4 factors

Division ladder

555
1111
1

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

Second way — factor tree
55511

See Also

FAQ

What is the Prime Factorization of 55?

Prime Factors of 55: 5, 11

How many prime factors does 55 have?

Number 55 has 2 prime factors, all different.

How can you check the prime factorization of 55?

Multiply the factors back together: 5 × 11 = 55. Every factor is prime, so nothing splits any further and this decomposition is the only one that exists.