11
5, 11, 25, 55.
They are itself and one because 11 is a prime number
1, 3, 5, 11, 15, 33, 55, 165
The full text of this brain teaser riddle can be found on numerous websites. The full text of it is:Once upon a time, an old lady went to sell her vast quantity of eggs at the local market.When asked how many she had, she replied:Son, I can't count past 100 but I know that -If you divide the number of eggs by 2 there will be one egg left.If you divide the number of eggs by 3 there will be one egg left.If you divide the number of eggs by 4 there will be one egg left.If you divide the number of eggs by 5 there will be one egg left.If you divide the number of eggs by 6 there will be one egg left.If you divide the number of eggs by 7 there will be one egg left.If you divide the number of eggs by 8 there will be one egg left.If you divide the number of eggs by 9 there will be one egg left.If you divide the number of eggs by 10 there will be one egg left.Finally, if you divide the number of eggs by 11 there will be NO EGGS left!What's the minimum number of eggs that the old lady could have?SPOILER ALERT - ANSWER IS BELOWThe least common multiple of 1 to 11 is 27720.3628801=27720*130+25201.Therefore, the old lady had at least 25201 eggs.
Since 11 is a prime number, the only number that will divide equally into the numbers 4, 33, and 11 is 1.Another contributor's answer:1324*33 = 13233*4 = 13211*12 = 132
12 eggs are in a dozen, times 11 equals 132 eggs.
A prime number is a number that is only evenly divisible by 1 and itself, since 11 and 17 both divide equally (no remainder) into 187 - it is not prime.
32.9091
121 will divide by 11... exactly 11 times !
First you divide 2,222 by 11 answer is 202 then you divide 2,222 by 202 answer is 11
It is: 1