The factors of 31 are
1, 3, 31
1, 6, 3, 31
1, 31
1, 7, 31
The common factors of 12 and 30 are
2, 3, 6
2, 3, 4
2, 3, 5
2, 4, 6
The multiples of 3 less than 20 are.
1, 3, 6, 9, 12, 15, 18
3, 6, 9, 12, 15, 18
1, 3, 9 12, 15, 18
3, 9, 12, 15, 18, 21
GCF of 27 and 45 is
8
9
10
5
The prime numbers less than 15 are.
1, 2, 3, 7, 11, 13
1, 2, 3, 5, 7, 11, 13
2, 3, 7, 11, 13
2, 3, 5, 7, 11, 13
The multiples of 6 less than 40 are
1, 6, 12, 18, 24, 30, 36
1, 6, 12, 24, 30, 36
6, 12, 18, 24, 30, 36
6, 12, 24, 30, 36
Without actual division determine which of the following is divisible by 3
5695
32900
264
17630
The LCM of 8 and 14 is
50
52
54
56
Without actual division determine which of the following is divisible by 4
3978
68709
Without actual division determine which of the following is divisible by 9.
10008
17360
