The Solid Wood Soldiers are a Texas-based white supremacist prison gang. Their primary tattoo consists of the initials SWS, with the two S's represented by lightning bolts. Above the initials appears the image of a bear claw, with the number 4 in the middle and sometimes the letters HCRL.

13/52 and 13/90 are racist numeric codes used by white supremacists to portray African-Americans as savage and criminal. White supremacists claim that Blacks make up only 13% of the U.S. population but commit 52% of all murders and 90% of all violent interracial crime.

The figure 109 is white supremacist numeric shorthand for the number of countries anti-Semites claim Jews have been expelled from. In calling for the expulsion of Jews from the U.S., they often refer to the U.S. as the 110th.

Members of the Unforgiven, a Florida-based racist prison gang, use the numeric symbol 21-2-12 as a sort of slogan. Substituting letters for numbers, 21 stands for U ("Unity"), 2 stands for B ("Brotherhood") and 12 stands for L ("Loyalty").

The number 38 is used as a numeric symbol by members of the Hammerskins, a racist skinhead group. Substituting letters for numbers, 38 stands for CH or "Crossed Hammers," a reference to the crossed hammers of the group's logo.

The number 43 is a numeric symbol used by members of the racist skinhead group Supreme White Alliance (SWA). If one substitutes numbers for the letters in SWA's initials (19, 23, 1), then adds those numbers together, the total is 43.

The number 318 is a white supremacist numeric symbol. The 3 in the symbol is a numeric substitution for the letter C. C18 stands for Combat 18, a British white supremacist group that occasionally develops chapters in the United States. The 18 in its name stands for Adolf Hitler.

The number 511 is a numeric symbol for the Oregon-based racist prison gang European Kindred. Substituting letters for numbers, the 5 and 11 equate to E and K, i.e., European Kindred.

The number 737 is a numeric symbol used by Public Enemy Number 1 (PENI), a California-based white supremacist gang present on California's streets and in its prisons. The numbers 737 correspond to the letters P, D, and S on a telephone keypad; the initials PDS stand for Peni Death Squad, another name for the group.

The number combination 14/23 is a numeric symbol associated with the Southern Brotherhood, the largest white supremacist prison gang in Alabama. The 14 is a reference to the white supremacist "14 Words" slogan ("We must secure the existence of our people and a future for white children"), while the 23 refers to the "23 precepts," a list of rules that Southern Brotherhood members must follow.

The number combination 23/16 is a numeric symbol used by white supremacists, particularly common on the West Coast. Substituting letters for numbers, the 23/16 equates to W/P or "White Power." Sometimes the combination is rendered as 16/23, in which case it is often intended to mean P/W for "peckerwood."

83 is a white supremacist numeric symbol standing for "Heil Christ" or "Hail Christ," typically used by adherents of the racist and anti-Semitic religious sect Christian Identity.

14 is numerical shorthand for the white supremacist slogan known as the "14 Words": "We must secure the existence of our people and a future for white children."

1488: 14 words and the 8th letter of the alphabet. Combined this creates a powerful symbol for white supremacists. Find out the true meaning of these numbers.

88 is a white supremacist numerical code for Heil Hitler. Read more about the meaning behind the numbers, as well as how it’s used in non-extremist forms.

9% is a numeric white supremacist symbol that refers to the percentage of the world's population that is purportedly white.

311 is a number used by Ku Klux Klan members to refer to the Klan. The elenth letter of the alphabet is the letter "K"; thus 3 times 11 equals "KKK," i.e., Ku Klux Klan.

The number 33 is used by Ku Klux Klan adherents to signify the Ku Klux Klan: since the 11th letter of the alphabet is K, three Ks signify "KKK" or the Ku Klux Klan. Klan members will frequently follow this with the number 6, to indicate the historical "era" of the Klan they think the Klan currently is in.

100% is shorthand for "100% white" among white supremacists. It is also common to create alphanumeric variations to proclaim solidarity with a particular white supremacist group or gang, such as "112%" for "100% Aryan Brotherhood."

28 is the white supremacist alphanumeric code for Blood & Honour, an international racist skinhead group.