Divisibility
The divisibility rule by 3
The sum of the digits must be a multiple of 3
The factors of 4
1,2 and 4
4,8,12
The smallest prime number
2
What is the prime factorization of 4?
22
The divisibility rule by 4
The last 2 digits of the number must be divisible by 4
The factors of 27
1,3,9 and 27
The first five multiplies of 7
7,14,21,28,35
The first five prime numbers
2,3,5,7 and 11
What is the prime factorization of 16?
24
The smallest two-digit number divisible by 9
18
The factors of 48
1,2,3,4,6,8,12,16,24 and 48
The first three multiplies of 38
38,76 and 114
The greatest prime number less than 40
37
What is the prime factorization of 12?
22 . 31
The greatest two-digit number divisible by 6
96
The common factors of 12 and 16
1,2 and 4
12,24 and 36
The smallest three-digit prime number
101
What is prime factorization of 48?
24 . 31
The smallest number that should be added to 429 to make it divisible by 6.
3
The greatest common factor of 48 and 120
24
The least common multiply of 12 and 32
96
The sum of the greatest two-digit prime number and the smallest three-digit prime number
198
What is prime factorization of 120?
23 . 31 . 51