Numbers and Counting: Large Numbers
Building on our previous lessons on numbers, this week we’ll discuss how to express numbers ranging from 1,000,000 to 999,999,999,999,999. We’ll also share some shortcuts that can make writing very large numbers more manageable.
If you need more help with numbers or any other aspect of the English language, contact the English Island in Atlanta. Our passionate, dedicated ESL teachers can create a lesson plan that is tailored to your individual needs.
Millions
7, 8, and 9 digit numbers are expressed in terms of millions, tens of millions, and hundreds of millions, respectively:
1,000,000  One million  10,000,000  Ten million  100,000,000  One hundred million 
2,000,000  Two million  20,000,000  Twenty million  200,000,000  Two hundred million 
3,000,000  Three million  30,000,000  Thirty million  300,000,000  Three hundred million 
4,000,000  Four million  40,000,000  Forty million  400,000,000  Four hundred million 
5,000,000  Five million  50,000,000  Fifty million  500,000,000  Five hundred million 
6,000,000  Six million  60,000,000  Sixty million  600,000,000  Six hundred million

7,000,000  Seven million  70,000,000  Seventy million  700,000,000  Seven hundred million 
8,000,000  Eight million  80,000,000  Eighty million  800,000,000  Eight hundred million 
9,000,000  Nine million  90,000,000  Ninety million  900,000,000  Nine hundred million 
Billions
For 10, 11, and 12 digit numbers, use billions, tens of billions, and hundreds of billions:
1,000,000,000  One billion  10,000,000,000  Ten billion  100,000,000,000  One hundred billion 
2,000,000,000  Two billion  20,000,000,000  Twenty billion  200,000,000,000  Two hundred billion 
3,000,000,000  Three billion  30,000,000,000  Thirty billion  300,000,000,000  Three hundred billion 
4,000,000,000  Four billion  40,000,000,000  Forty billion  400,000,000,000  Four hundred billion 
5,000,000,000  Five billion  50,000,000,000  Fifty billion  500,000,000,000  Five hundred billion 
6,000,000,000  Six billion  60,000,000,000  Sixty billion  600,000,000,000  Six hundred billion 
7,000,000,000  Seven billion  70,000,000,000  Seventy billion  700,000,000,000  Seven hundred billion 
8,000,000,000  Eight billion  80,000,000,000  Eighty billion  800,000,000,000  Eight hundred billion 
9,000,000,000  Nine billion  90,000,000,000  Ninety billion  900,000,000,000  Nine hundred billion 
Trillions
13, 14, and 15 digit numbers are “named” in trillions, tens of trillions, and hundreds of trillions:
1,000,000,000,000  One trillion  10,000,000,000,000  Ten trillion 
2,000,000,000,000  Two trillion  20,000,000,000,000  Twenty trillion 
3,000,000,000,000  Three trillion  30,000,000,000,000  Thirty trillion 
4,000,000,000,000  Four trillion  40,000,000,000,000  Forty trillion 
5,000,000,000,000  Five trillion  50,000,000,000,000  Fifty trillion 
6,000,000,000,000  Six trillion  60,000,000,000,000  Sixty trillion 
7,000,000,000,000  Seven trillion  70,000,000,000,000  Seventy trillion 
8,000,000,000,000  Eight billion  80,000,000,000,000  Eighty trillion 
9,000,000,000,000  Nine trillion  90,000,000,000,000  Ninety trillion 
100,000,000,000,000  One hundred trillion 
200,000,000,000,000  Two hundred trillion 
300,000,000,000,000  Three hundred trillion 
400,000,000,000,000  Four hundred trillion 
500,000,000,000,000  Five hundred trillion 
600,000,000,000,000  Six hundred trillion 
700,000,000,000,000  Seven hundred trillion 
800,000,000,000,000  Eight hundred trillion 
900,000,000,000,000  Nine hundred trillion 
By combining everything we have learned in our numbers lessons, we can count all the way to 999,999,999,999,999. Here are just a few examples:
5,000,304

five million three hundred four 
20,747,919  twenty million seven hundred fortyseven thousand nine hundred nineteen 
1,034,657,382  one billion thirtyfour million six hundred fiftyseven thousand three hundred eightytwo 
600,523,896,000  six hundred billion five hundred twentythree million eight hundred ninetysix thousand 
999,999,999,999,999  nine hundred ninetynine trillion nine hundred ninetynine billion nine hundred ninetynine million nine hundred ninetynine thousand nine hundred ninetynine 
As you can see, expressing large numbers in English can be very complicated. To make writing large numbers easier, you can combine Arabic numerals (1,2,3…) and cardinal numbers (the words we have learned). For example, 28,000,000 can be written as 28 million. 3,700,000,000 can be shortened to 3.7 billion.
In situations where absolute accuracy is not important, native English speakers will often round large numbers for the sake of clarity and concision. According to recent estimates, the Atlanta metropolitan area has 5,522,942 residents. Rather than trying to write this entire number out, you can say that Metro Atlanta has over 5.5 million, about 5.5 million, or just 5.5 million residents.