85 ----------------- Only two - they are 1 and 11.
2
11 is a prime number. Therefore the only factors of 11 is 1 and 11.
All the factors of 11 are 1,11. Because 11x1=11 and nothing else does. All the factors of 11 are 1,11.Because 11x1=11 and nothing else does.
Factors: 286=2*11*13 429=3*11*13 Common factors: 11, 13
Factors of 55 are: 1, 5, 11, and 55 Factors of 99 are: 1, 3, 9, 11, 33, and 99 "Common" factors are numbers that are factors of both. Common factors of 55 and 99 are: 1 and 11 .
It has two factors: 1 and 11.
Two factors.
2
1 and 11 (11 is a prime number).
Three factors: 1 11 121.
The factors of 121 are: 1, 11, 121
The prime factors of 88 are 2 and 11
Four. The factors of 77 are: 1 7 11 77
Four factors: 1 2 11 22.
77 has four factors: 1, 7, 11, 77.
There are many 4 digit numbers having 3 and 11 as factors. One of them is 1089 whose factors are 3,3,11,11.
99 factors to [3 3 11] 121 factors to [11 11] Common factors [11] Answer is 11. ■