 Greek numeration underwent several changes, but eventually a form of additive notation evolved where letters of the Greek alphabet represented amounts. So, we'd have symbols for 1 through 9, for the tens from 10 to 90, and for the hundreds from 100 to 900. Now, if you know anything about the Greek alphabet, you'll know it actually only has 24 letters in it, and we need 27 symbols. And as it turns out, we're in luck because there are three archaic letters that are no longer in use. So, for 1 through 9, we have alpha through theta, where the symbol for 6 is one of the archaic letters known as stigma. For 10 through 90, we have iota through another archaic letter known as kappa, and roughly equivalent to q. And for the hundreds, rho through a final archaic letter known as sampi. For the thousands, a mark would be placed before the corresponding digit, so mark alpha would be alpha 1000. So, for example, we might try to write the number 436, and then interpret two numbers. So, 436, 400 would be epsilon, 30 would be lambda, and 6 would be stigma. So, 436 would be epsilon, lambda, stigma. To decipher this number, we note that c is 700, kappa is 20, and eta is 8. So, this would be 728. Finally, for this number, gamma is 3, but putting the mark before it makes it represent 3000. Omega is 800, kappa is 20, and zeta is 7. So, this is 3827. Our number system is milesimal. We have unit names for amounts up to 1000, and for higher values, we express the number of thousands. So, we talk about 37,000. The Greeks actually have a word for 10,000, which we translate as myriad. Well, it's not really a translation, the actual Greek word is myriad. Their numbering system might be called decimilesimal. They could express numbers up to 10,000, and then larger numbers were expressed by the number of 10,000. This would be expressed by placing the number of myriads over a m. So, for example, iota-beta, that's 10 to 12, and iota-beta over an m is 12 10,000. And we'd actually call this number 120,000s. So, for example, we could write a very large number, or interpret a very large number. So, it helps to think of 175,284 as 1710,000s, 5284. We're essentially moving the comma separator to the 10,000s place. Reading this, we'll need 1710,000s, so that's 10 and 7 iota-zeta over m. We'll also need 5284. So, remember using the mark before a number will convert it to a number of thousands. So, we need 5,000s, so we'll mark epsilon, 200 sigma, 80 pi, and 4 delta. And so our number is written this way. The other number, so that's rho pi delta over m, so that's rho pi delta 10,000s, or 184 10,000s. The other number, that's mark stigma 6000, Sampe 900, Kopa 90, Theta 9, 6999, and all together, and placing our comma 1,846,999.