Except for 1, all of them.
2101
2101 = MMCI
Yes, 100,000 is less than 20 million.
Yes, 10,000 is less than 20 million.
Except for 1, all of them.
-20 is less than 19.
2101
2101 = MMCI
Yes, 100,000 is less than 20 million.
Yes, 10,000 is less than 20 million.
-2
The number that 30 is ten less than is 40. Half that is 20. So the question becomes "what number is as much more than 10 is less than 20". This is gobbledygook, but if I rephrase to say "what number is as much more than 10 than 10 is less than 20", then since10 is less than 20 by 10, I guess 20.
2101 is not prime. 2101 = 11 * 191. So, it is a composite number.
4331
By these factors: 1, 11, 191, 2101.
6 less than x-6 is x-12, and that equals 8 if x is 20 and is less than 8 if x is less than 20.