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What is the prefix for twenty?

What is the prefix for twenty?

Table of number prefixes in English

Number Latin prefixes Greek prefixes
Cardinal Cardinal
18 octodec- octo(kai)deca-, decaocto-
19 novemdec-, novendec- ennea(kai)deca-, decaennea-
20 viginti- (e)icosi-

What are the prefixes for 7?

prefix number indicated
penta- 5
hexa- 6
hepta- 7
octa- 8

What number is DECA?

Deca (International spelling as used by the International Bureau of Weights and Measures; symbol: da) or deka (American spelling) is a decimal unit prefix in the metric system denoting a factor of ten. The term is derived from the Greek déka (δέκα) meaning ten.

What number is HEPT?

IUPAC numerical multiplier

Number Multiplier
5 penta-
6 hexa-
7 hepta-
8 octa-

What does uni mean in numbers?

Common Number Prefixes and Their Meanings

Prefix Number
uni- mono- 1
bi- di- 2
tri- 3
quad-, quart- tetra- 4

What are the first 10 prefixes?

10 Cards in this Set

1 mono-
7 hepta-
8 octa-
9 nona-
10 deca-

What does Hepta mean?

Hepta- is a combining form used like a prefix meaning “seven.” It is used in a number of scientific and other technical terms. In chemistry, hepta- is specifically used to indicate seven atoms or seven groups of atoms in compounds, e.g., heptachlor.

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