2, 3, 5, And 7 are the first 4 prime numbers
No.
1, 3, 9, 1009, 3027, 9081 3 and 1009 are prime.
it is 3
1155
2, 3, 5, And 7 are the first 4 prime numbers
It is 1.
The last digit is 3. If you multiply 3 repeatedly by itself, you get the last digits:3, 9, 7, 1, 3, 9, 7, 1... In other words, every fourth power of 3 will end with the digit 1. Since any factorial starting at 4! has 4 as a factor, it follows that the last digit is 1.
this is a guess and check problem. answers is 1009. 999 - 10 = 989 lets try one less (998) 998 -9(1 digit) is not possible, lets try one more (1000) 1000(4 digit) - 11 is not possible so only possible solution is (999,10) Answers is 999+10 = 1009
In this context, a digit is a single numeral. The last digit (number) in 373333 is of course '3'.
No.
1, 3, 9, 1009, 3027, 9081 3 and 1009 are prime.
3
3
it is 3
1155
1