Prime Factorization of 40

"Prime Factorization" Calculator

What is the Prime Factorization of 40?

Answer

Prime Factors of 40:

2, 2, 2, 5

40 = 2³ × 5 · composite · 8 factors · 4 prime factors counting repeats

Division ladder

40	2
20	2
10	2
5	5
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
25	5²
26	2, 13
27	3³
28	2² × 7
29	29
30	2, 3, 5
31	31
32	2⁵
33	3, 11
34	2, 17
35	5, 7
36	2² × 3²
37	37
38	2, 19
39	3, 13
40	2³ × 5
41	41
42	2, 3, 7
43	43
44	2² × 11
45	3² × 5
46	2, 23
47	47
48	2⁴ × 3
49	7²
50	2 × 5²
51	3, 17
52	2² × 13
53	53
54	2 × 3³

FAQ

What is the Prime Factorization of 40?

Prime Factors of 40: 2, 2, 2, 5

How many prime factors does 40 have?

Number 40 has 4 prime factors counting repeats; 2 different: 2 and 5.

What is the Prime Factorization of 40 in exponential form?

The Prime Factorization of the number 40 in the exponential form is: 2³ × 5