The LCM of 8 and 14 is
50
52
54
56
Without actual division determine which of the following is divisible by 3
5695
32900
264
17630
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 5.
12345
32873
71324
17362
The prime factorisation of 1080 is
2 × 2 × 2 × 3× 3× 3×5
2× 2× 2× 2× 2× 3× 3× 5
2× 2× 3× 3× 3× 3× 5
2× 2× 2× 3× 3× 5× 5
The factors of 8 are
1, 2, 4, 8
1, 2, 8
2, 4, 8
1, 4, 8
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
The common factors of 12 and 30 are
2, 3, 6
2, 3, 4
2, 3, 5
2, 4, 6
The prime numbers between 20 and 40 are
23, 29, 31, 37
23, 27, 29, 31, 37
23, 27, 29, 31, 33
23, 29, 31, 35, 37
